- Table of Contents
-
- H3C Data Center Switches DRNI Configuration Guide-6W103
- 00-DRNI network planning
- 01-DRNI+IPv4 and IPv6 Dual-Active VLAN Gateway Configuration Example
- 02-Multi-Layer DRNI+STP+Dual-Active VLAN Gateway Configuration Examples
- 03-Multi-Layer DRNI+Dual-Active VLAN Gateway+OSPF Configuration Examples
- 04-Multi-tier DRNI+Spine Gateways+ECMP Paths to External Network Configuration Example
- 05-DRNI and VRRP Configuration Example
- 06-DRNI+RDMA Configuration Example
- 07-DRNI and EVPN Distributed Gateway (IS-IS for underlay routing) Configuration Example
- 08-DRNI and EVPN Distributed Gateway (BGP for Underlay Routing) Configuration Example
- 09-DRNI+EVPN Distributed Gateway (OSPF on Underlay Network)+DHCP Relay+Microsegmentation+Service Chain Configuration Example
- 10-DRNI+EVPN Centralized Gateway Configuration Example
- 11-Access to DRNI Through Dynamic Routing and Distributed EVPN Gateways Configuration Example
- 12-DRNI+EVPN+Monitor Link Configuration Examples
- 13-DRNI and MVXLAN Configuration Example
- 14-DRNI and DCI Configuration Example
- 15-DRNI+EVPN DC Switchover Upon Border Failure Configuration Examples
- Related Documents
-
Title | Size | Download |
---|---|---|
03-Multi-Layer DRNI+Dual-Active VLAN Gateway+OSPF Configuration Examples | 223.26 KB |
Example: Configuring multi-layer DRNI+dual-active VLAN gateway+OSPF
Configuring the dual-active gateways
Configuring OSPF between DR member devices
Underlay traffic characteristics
Testing network convergence upon single points of failure
Verifying the status of the DR system
Verifying the routing protocols
Verifying the traffic interruption time during the upgrade
Verifying the traffic interruption time
Verifying the expansion result
Replacing a switching fabric module
Example: Configuring multi-layer DRNI+dual-active VLAN gateway+OSPF
Network configuration
As shown in Figure 1, the user network uses a three-layer architecture: core-aggregation-access. To improve network availability, deploy two devices separately on the core layer, aggregation layer, and access layer. Two devices on each layer form a DR system.
· Device A and Device B form DR system 1, which acts as the access device and connects to VM.
· Device C and Device D form DR system 2, which acts as an aggregation device.
· Device E and Device F form DR system 3, which acts as the core device and connects to Server.
To meet the network access requirements of VM and Server, make sure the DR member devices on the aggregation layer act as both the IPv4 gateway and IPv6 gateway of VM and the DR member devices on the core layer act as both the IPv4 gateway and IPv6 gateway of Server. Run OSPF between the DR member devices on the aggregation layer and DR member devices on the core layer to ensure that they can reach each other at Layer 3.
Interface |
IP address |
Peer device and interface |
|
Device A |
XGE1/0/24 |
IPv4: 220.1.1.1/24 |
Device B: XGE2/0/24 |
Device B |
XGE2/0/24 |
IPv4: 220.1.1.2/24 |
Device A: XGE1/0/24 |
Device C |
WGE1/0/11 |
IPv4: 220.1.1.3/24 |
Device D: WGE2/0/11 |
Vlan-int10 |
IPv4: 10.1.1.1/24 IPv6: 10:1::1/64 |
N/A |
|
Vlan-int20 |
IPv4: 20.1.1.1/24 IPv6: 20:1::1/64 |
Device E: Vlan-int20 Device F: Vlan-int20 |
|
Device D |
WGE2/0/11 |
IPv4: 220.1.1.4/24 |
Device C: WGE1/0/11 |
Vlan-int10 |
IPv4: 10.1.1.1/24 IPv6: 10:1::1/64 |
N/A |
|
Vlan-int20 |
IPv4: 20.1.1.1/24 IPv6: 20:1::1/64 |
Device E: Vlan-int20 Device F: Vlan-int20 |
|
Device E |
XGE1/4/5 |
IPv4: 220.1.1.5/24 |
Device F: XGE2/4/5 |
Vlan-int20 |
IPv4: 20.1.1.2/24 IPv6: 20:1::2/64 |
Device C: Vlan-int20 Device D: Vlan-int20 |
|
Vlan-int30 |
IPv4: 30.1.1.1/24 IPv6: 30:1::1/64 |
Device G: Vlan-int30 |
|
Device F |
XGE2/4/5 |
IPv4: 220.1.1.6/24 |
Device E: XGE1/4/5 |
Vlan-int20 |
IPv4: 20.1.1.2/24 IPv6: 20:1::2/64 |
Device C: Vlan-int20 Device D: Vlan-int20 |
|
Vlan-int30 |
IPv4: 30.1.1.1/24 IPv6: 30:1::1/64 |
Device G: Vlan-int30 |
Applicable product matrix
IMPORTANT: In addition to running an applicable software version, you must also install the most recent patch, if any. |
Device |
Software version |
S6805, S6825, S6850, S9850, S9820-64H, S9820-8C |
R6635 |
S6800, S6860 |
Not supported (no version supports dynamic routing access for DRNI) |
S12500X-AF, S6890 |
R2820 |
S12500G-AF |
Under verification. To obtain the latest images, contact Technical Support. |
S6812, S6813 |
Under development. To obtain the latest images, contact Technical Support. |
Analysis
Device A and Device B are on the access layer. Device C and Device D are on the aggregation layer. Device E and Device F are on the core layer.
On Device C and Device D, configure an IPv4 address and an IPv6 address for VLAN-interface 10, which will act as the IPv4 gateway address and IPv6 gateway address of VM, respectively. Configure an IPv4 address and an IPv6 address for VLAN-interface 20, which will act as the interconnect interface to devices on the core layer.
On Device E and Device F, configure an IPv4 address and an IPv6 address for VLAN-interface 30, which will act as the IPv4 gateway address and IPv6 gateway address of Server, respectively. Configure an IPv4 address and an IPv6 address for VLAN-interface 20, which will act as the interconnect interface to devices on the aggregation layer.
On Device C, Device D, Device E, and Device F, assign a DRNI virtual IP address to VLAN-interface 20, and enable OSPF to use the secondary IP addresses of interfaces to establish neighbor relationships. On Device C and Device D, enable OSPF and OSPFv3 on VLAN-interface 10 and VLAN-interface 20. On Device E and Device F, enable OSPF and OSPFv3 on VLAN-interface 20 and VLAN-interface 30. Configure Device C to use the DRNI virtual IP address of VLAN-interface 20 to establish OSPF/OSPFv3 neighbor relationships with Device D, Device E, and Device F. Configure Device D, Device E, and Device F in the same way. Each device uses the DRNI virtual IP address to establish OSPF/OSPFv3 neighbor relationships with the other three devices.
Configuring the DR systems
Procedure summary
· Configuring the dual-active gateways
· Configuring OSPF between DR member devices
Configuring DRNI
Configuring Device A and Device B
Device A |
Device B |
Description |
Remarks |
drni system-mac 2-2-2 |
drni system-mac 2-2-2 |
Configure the DR system MAC address. |
You must configure the same DR system MAC address for devices in the same DR system. |
drni system-number 1 |
drni system-number 2 |
Set the DR system number. |
You must set different DR system numbers for devices in the same DR system. |
drni system-priority 123 |
drni system-priority 123 |
Set the DR system priority. |
You must set the same DR system priority for devices in the same DR system. |
drni standalone enable |
drni standalone enable |
Enable DRNI standalone mode. |
N/A |
drni keepalive ip destination 220.1.1.2 source 220.1.1.1 |
drni keepalive ip destination 220.1.1.1 source 220.1.1.2 |
Configure the destination and source IP addresses of keepalive packets. |
N/A |
interface Ten-GigabitEthernet 1/0/24 |
interface Ten-GigabitEthernet 2/0/24 |
Enter the interface view for the keepalive link. |
N/A |
port link-mode route |
port link-mode route |
Configure the interface for the keepalive link to operate in route mode as a Layer 3 interface. |
N/A |
ip address 220.1.1.1 24 |
ip address 220.1.1.2 24 |
Assign an IP address to the interface for the keepalive link. |
N/A |
quit |
quit |
Return to system view. |
N/A |
drni mad exclude interface Ten-GigabitEthernet 1/0/24 |
drni mad exclude interface Ten-GigabitEthernet 2/0/24 |
Exclude the interface used for DR keepalive detection from the shutdown action by DRNI MAD. |
N/A |
interface bridge-aggregation 1 |
interface bridge-aggregation 1 |
Create the aggregate interface to be used as the IPP and enter interface view. |
N/A |
quit |
quit |
Return to system view. |
N/A |
Interface HundredGigE 1/0/28 |
interface HundredGigE 2/0/28 |
Enter the view of physical interfaces on the IPL. |
N/A |
port link-aggregation group 1 |
port link-aggregation group 1 |
Assign the physical interfaces on the IPL to the aggregation group for the IPL. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface bridge-aggregation 1 |
interface bridge-aggregation 1 |
Enter the view of the aggregation group for the IPL. |
N/A |
undo mac-address static source-check enable |
undo mac-address static source-check enable |
Disable source MAC check on an interface. |
N/A |
link-aggregation mode dynamic |
link-aggregation mode dynamic |
Configure the aggregate interface to operate in dynamic mode. |
N/A |
port drni intra-portal-port 1 |
port drni intra-portal-port 1 |
Specify the aggregate interface (Bridge-Aggregation 1) as the IPP. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface bridge-aggregation 2 |
interface bridge-aggregation 2 |
Create an aggregate interface connecting to VM. |
N/A |
link-aggregation mode dynamic |
link-aggregation mode dynamic |
Configure the aggregate interface connecting to VM to operate in dynamic mode. |
N/A |
port drni group 2 |
port drni group 2 |
Assign the aggregate interface (Bridge-Aggregation 2) to DR group 2. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface bridge-aggregation 3 |
interface bridge-aggregation 3 |
Create an aggregate interface connecting to Device C and Device D. |
N/A |
link-aggregation mode dynamic |
link-aggregation mode dynamic |
Configure the aggregate interface connecting to Device C and Device D to operate in dynamic mode. |
N/A |
port drni group 3 |
port drni group 3 |
Assign the aggregate interface (Bridge-Aggregation 3) to DR group 3. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface HundredGigE 1/0/27 |
interface HundredGigE 2/0/27 |
Enter the view of the physical interfaces connecting the DR system to VM. |
N/A |
port link-aggregation group 2 |
port link-aggregation group 2 |
Assign the interfaces to a DR group. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface range HundredGigE 1/0/25 HundredGigE 1/0/26 |
interface range HundredGigE 2/0/25 HundredGigE 2/0/26 |
Enter the view of the physical interfaces connecting the DR system to Device C and Device D. |
N/A |
port link-aggregation group 3 |
port link-aggregation group 3 |
Assign the interfaces to a DR group. |
N/A |
quit |
quit |
Return to system view. |
N/A |
link-aggregation global load-sharing algorithm 7 |
link-aggregation global load-sharing algorithm 7 |
Configure a link aggregation load sharing algorithm. |
To identify whether traffic is load-shared among aggregation member ports, use the display counters command to view the traffic on each aggregation group member port. If traffic is not well load-shared, you can use this command to specify a proper link aggregation load sharing algorithm. This command is not supported on the S6812 and S6813 switches. |
Configuring Device C and Device D
Device C |
Device D |
Description |
Remarks |
drni system-mac 1-1-1 |
drni system-mac 1-1-1 |
Configure the DR system MAC address. |
You must configure the same DR system MAC address for devices in the same DR system. |
drni system-number 1 |
drni system-number 2 |
Set the DR system number. |
You must set different DR system numbers for devices in the same DR system. |
drni system-priority 124 |
drni system-priority 124 |
Set the DR system priority. |
You must set the same DR system priority for devices in the same DR system. |
drni standalone enable |
drni standalone enable |
Enable DRNI standalone mode. |
N/A |
drni keepalive ip destination 220.1.1.4 source 220.1.1.3 |
drni keepalive ip destination 220.1.1.3 source 220.1.1.4 |
Configure the destination and source IP addresses of keepalive packets. |
N/A |
interface Twenty-FiveGigE 1/0/11 |
interface Twenty-FiveGigE 2/0/11 |
Enter the interface view for the keepalive link. |
N/A |
port link-mode route |
port link-mode route |
Configure the interface for the keepalive link to operate in route mode as a Layer 3 interface. |
N/A |
ip address 220.1.1.3 24 |
ip address 220.1.1.4 24 |
Assign an IP address to the interface for the keepalive link. |
N/A |
quit |
quit |
Return to system view. |
N/A |
drni mad exclude interface Twenty-FiveGigE 1/0/11 |
drni mad exclude interface Twenty-FiveGigE 2/0/11 |
Exclude the interface used for DR keepalive detection from the shutdown action by DRNI MAD. |
N/A |
interface bridge-aggregation 1 |
interface bridge-aggregation 1 |
Create the aggregate interface to be used as the IPP and enter interface view. |
N/A |
quit |
quit |
Return to system view. |
N/A |
Interface HundredGigE 1/0/26 |
interface HundredGigE 2/0/26 |
Enter the view of physical interfaces on the IPL. |
N/A |
port link-aggregation group 1 |
port link-aggregation group 1 |
Assign the physical interfaces on the IPL to the aggregation group for the IPL. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface bridge-aggregation 1 |
interface bridge-aggregation 1 |
Enter the view of the aggregation group for the IPL. |
N/A |
undo mac-address static source-check enable |
undo mac-address static source-check enable |
Disable source MAC check on an interface. |
N/A |
link-aggregation mode dynamic |
link-aggregation mode dynamic |
Configure the aggregate interface to operate in dynamic mode. |
N/A |
port drni intra-portal-port 1 |
port drni intra-portal-port 1 |
Specify the aggregate interface (Bridge-Aggregation 1) as the IPP. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface bridge-aggregation 2 |
interface bridge-aggregation 2 |
Create an aggregate interface connecting to Device E and Device F. |
N/A |
link-aggregation mode dynamic |
link-aggregation mode dynamic |
Configure the aggregate interface connecting to Device E and Device F to operate in dynamic mode. |
N/A |
port drni group 2 |
port drni group 2 |
Assign the aggregate interface (Bridge-Aggregation 2) to DR group 2. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface bridge-aggregation 3 |
interface bridge-aggregation 3 |
Create an aggregate interface connecting to Device A and Device B. |
N/A |
link-aggregation mode dynamic |
link-aggregation mode dynamic |
Configure the aggregate interface connecting to Device A and Device B to operate in dynamic mode. |
N/A |
port drni group 3 |
port drni group 3 |
Assign the aggregate interface (Bridge-Aggregation 3) to DR group 3. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface range HundredGigE 1/0/28 HundredGigE 1/0/29 |
interface range HundredGigE 2/0/28 HundredGigE 2/0/29 |
Enter the view of the physical interfaces connecting the DR system to Device E and Device F. |
N/A |
port link-aggregation group 2 |
port link-aggregation group 2 |
Assign the interfaces to a DR group. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface range HundredGigE 1/0/30 HundredGigE 1/0/31 |
interface range HundredGigE 2/0/30 HundredGigE 2/0/31 |
Enter the view of the physical interfaces connecting the DR system to Device A and Device B. |
N/A |
port link-aggregation group 3 |
port link-aggregation group 3 |
Assign the interfaces to a DR group. |
N/A |
quit |
quit |
Return to system view. |
N/A |
link-aggregation global load-sharing algorithm 7 |
link-aggregation global load-sharing algorithm 7 |
Configure a link aggregation load sharing algorithm. |
To identify whether traffic is load-shared among aggregation member ports, use the display counters command to view the traffic on each aggregation group member port. If traffic is not well load-shared, you can use this command to specify a proper link aggregation load sharing algorithm. This command is not supported on the S6812 and S6813 switches. |
Configuring Device E and Device F
Device E |
Device F |
Description |
Remarks |
drni system-mac 1-2-3 |
drni system-mac 1-2-3 |
Configure the DR system MAC address. |
You must configure the same DR system MAC address for devices in the same DR system. |
drni system-number 1 |
drni system-number 2 |
Set the DR system number. |
You must set different DR system numbers for devices in the same DR system. |
drni system-priority 122 |
drni system-priority 122 |
Set the DR system priority. |
You must set the same DR system priority for devices in the same DR system. |
drni standalone enable |
drni standalone enable |
Enable DRNI standalone mode. |
N/A |
drni keepalive ip destination 220.1.1.6 source 220.1.1.5 |
drni keepalive ip destination 220.1.1.5 source 220.1.1.6 |
Configure the destination and source IP addresses of keepalive packets. |
N/A |
interface Ten-GigabitEthernet 1/4/5 |
interface Ten-GigabitEthernet 2/4/5 |
Enter the interface view for the keepalive link. |
N/A |
port link-mode route |
port link-mode route |
Configure the interface for the keepalive link to operate in route mode as a Layer 3 interface. |
N/A |
ip address 220.1.1.5 24 |
ip address 220.1.1.6 24 |
Assign an IP address to the interface for the keepalive link. |
N/A |
quit |
quit |
Return to system view. |
N/A |
drni mad exclude interface Ten-GigabitEthernet 1/4/5 |
drni mad exclude interface Ten-GigabitEthernet 2/4/5 |
Exclude the interface used for DR keepalive detection from the shutdown action by DRNI MAD. |
N/A |
interface bridge-aggregation 1 |
interface bridge-aggregation 1 |
Create the aggregate interface to be used as the IPP and enter interface view. |
N/A |
quit |
quit |
Return to system view. |
N/A |
Interface HundredGigE 1/1/8 |
interface HundredGigE 2/1/8 |
Enter the view of physical interfaces on the IPL. |
N/A |
port link-aggregation group 1 |
port link-aggregation group 1 |
Assign the physical interfaces on the IPL to the aggregation group for the IPL. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface bridge-aggregation 1 |
interface bridge-aggregation 1 |
Enter the view of the aggregation group for the IPL. |
N/A |
undo mac-address static source-check enable |
undo mac-address static source-check enable |
Disable source MAC check on an interface. |
N/A |
link-aggregation mode dynamic |
link-aggregation mode dynamic |
Configure the aggregate interface to operate in dynamic mode. |
N/A |
port drni intra-portal-port 1 |
port drni intra-portal-port 1 |
Specify the aggregate interface (Bridge-Aggregation 1) as the IPP. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface bridge-aggregation 2 |
interface bridge-aggregation 2 |
Create an aggregate interface connecting to Device C and Device D. |
N/A |
link-aggregation mode dynamic |
link-aggregation mode dynamic |
Configure the aggregate interface connecting to Device C and Device D to operate in dynamic mode. |
N/A |
port drni group 2 |
port drni group 2 |
Assign the aggregate interface (Bridge-Aggregation 2) to DR group 2. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface bridge-aggregation 3 |
interface bridge-aggregation 3 |
Create an aggregate interface connecting to Device G. |
N/A |
link-aggregation mode dynamic |
link-aggregation mode dynamic |
Configure the aggregate interface connecting to Device G to operate in dynamic mode. |
N/A |
port drni group 3 |
port drni group 3 |
Assign the aggregate interface (Bridge-Aggregation 3) to DR group 3. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface range HundredGigE 1/0/4 HundredGigE 1/0/5 |
interface range HundredGigE 2/0/4 HundredGigE 2/0/5 |
Enter the view of the physical interfaces connecting the DR system to Device C and Device D. |
N/A |
port link-aggregation group 2 |
port link-aggregation group 2 |
Assign the interfaces to a DR group. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface HundredGigE1/0/6 |
interface HundredGigE2/0/6 |
Enter the view of the physical interfaces connecting the DR system to Device G. |
N/A |
port link-aggregation group 3 |
port link-aggregation group 3 |
Assign the interfaces to a DR group. |
N/A |
quit |
quit |
Return to system view. |
N/A |
link-aggregation global load-sharing algorithm 7 |
link-aggregation global load-sharing algorithm 7 |
Configure a link aggregation load sharing algorithm. |
To identify whether traffic is load-shared among aggregation member ports, use the display counters command to view the traffic on each aggregation group member port. If traffic is not well load-shared, you can use this command to specify a proper link aggregation load sharing algorithm. This command is not supported on the S6812 and S6813 switches. |
Configuring the dual-active gateways
Configuring Device A and Device B
Device A |
Device B |
Description |
Remarks |
vlan 10 |
vlan 10 |
Create VLAN 10. |
N/A |
interface bridge-aggregation 2 |
interface bridge-aggregation 2 |
Enter the view of the aggregate interface connecting to VM. |
N/A |
port link-type trunk |
port link-type trunk |
Set the link type of the Layer 2 aggregate interface to trunk. |
N/A |
port trunk permit vlan 10 |
port trunk permit vlan 10 |
Assign the interface to VLAN 10. |
N/A |
undo port trunk permit vlan 1 |
undo port trunk permit vlan 1 |
Remove the interface from VLAN 1. |
N/A |
port lacp system-priority 101 |
port lacp system-priority 100 |
Set the LACP priority. |
Set different LACP priorities for different DR member devices, so that only member ports with a higher priority are selected upon brain split. |
quit |
quit |
Return to system view. |
N/A |
interface bridge-aggregation 3 |
interface bridge-aggregation 3 |
Enter the view of the aggregate interface connecting to Device C and Device D. |
N/A |
port link-type trunk |
port link-type trunk |
Set the link type of the Layer 2 aggregate interface (Bridge-Aggregation 3) to trunk. |
N/A |
port trunk permit vlan 10 |
port trunk permit vlan 10 |
Assign the interface to VLAN 10. |
N/A |
undo port trunk permit vlan 1 |
undo port trunk permit vlan 1 |
Remove the interface from VLAN 1. |
N/A |
port lacp system-priority 101 |
port lacp system-priority 100 |
Set the LACP priority. |
Set different LACP priorities for different DR member devices, so that only member ports with a higher priority are selected upon brain split. |
Configuring Device C and Device D
Device C |
Device D |
Description |
Remarks |
vlan 10 20 |
vlan 10 20 |
Create VLANs 10 and 20. |
N/A |
interface bridge-aggregation 2 |
interface bridge-aggregation 2 |
Enter the view of the aggregate interface connecting to Device E and Device F. |
N/A |
port link-type trunk |
port link-type trunk |
Set the link type of the Layer 2 aggregate interface (Bridge-Aggregation 2) to trunk. |
N/A |
port trunk permit vlan 20 |
port trunk permit vlan 20 |
Assign the interface to VLAN 20. |
N/A |
undo port trunk permit vlan 1 |
undo port trunk permit vlan 1 |
Remove the interface from VLAN 1. |
N/A |
port lacp system-priority 101 |
port lacp system-priority 100 |
Set the LACP priority. |
Set different LACP priorities for different DR member devices, so that only member ports with a higher priority are selected upon brain split. |
quit |
quit |
Return to system view. |
N/A |
interface bridge-aggregation 3 |
interface bridge-aggregation 3 |
Enter the view of the aggregate interface connecting to Device A and Device B. |
N/A |
port link-type trunk |
port link-type trunk |
Set the link type of the Layer 2 aggregate interface to trunk. |
N/A |
port trunk permit vlan 10 |
port trunk permit vlan 10 |
Assign the interface to VLAN 10. |
N/A |
undo port trunk permit vlan 1 |
undo port trunk permit vlan 1 |
Remove the interface from VLAN 1. |
N/A |
port lacp system-priority 101 |
port lacp system-priority 100 |
Set the LACP priority. |
Set different LACP priorities for different DR member devices, so that only member ports with a higher priority are selected upon brain split. |
quit |
quit |
Return to system view. |
N/A |
interface vlan-interface 10 |
interface vlan-interface 10 |
Create VLAN-interface 10. |
N/A |
ip address 10.1.1.1 255.255.255.0 |
ip address 10.1.1.1 255.255.255.0 |
Assign an IPv4 address to VLAN-interface 10, which is to act as an IPv4 dual-active gateway. |
N/A |
mac-address 0010-0010-0010 |
mac-address 0010-0010-0010 |
Assign a MAC address to VLAN-interface 10. |
N/A |
ipv6 address 10:1::1 64 |
ipv6 address 10:1::1 64 |
Assign an IPv6 address to VLAN-interface 10, which is to act as an IPv6 dual-active gateway. |
N/A |
quit |
quit |
Return to system view. |
N/A |
drni mad exclude interface Vlan-interface10 |
drni mad exclude interface Vlan-interface10 |
Exclude VLAN-interface 10 from the shutdown action by DRNI MAD. |
N/A |
interface vlan-interface 20 |
interface vlan-interface 20 |
Create VLAN-interface 20. |
N/A |
ip address 20.1.1.1 255.255.255.0 |
ip address 20.1.1.1 255.255.255.0 |
Assign an IPv4 address to VLAN-interface 20. |
The address is the address of the interface connecting to core devices. |
mac-address 0020-0020-0020 |
mac-address 0020-0020-0020 |
Assign a MAC address to VLAN-interface 20. |
N/A |
ipv6 address 20:1::1 64 |
ipv6 address 20:1::1 64 |
Assign an IPv6 address to VLAN-interface 20. |
The address is the address of the interface connecting to core devices. |
quit |
quit |
Return to system view. |
N/A |
drni mad exclude interface Vlan-interface20 |
drni mad exclude interface Vlan-interface20 |
Exclude VLAN-interface 20 from the shutdown action by DRNI MAD. |
N/A |
Configuring Device E and Device F
Device E |
Device F |
Description |
Remarks |
vlan 20 30 |
vlan 20 30 |
Create VLANs 20 and 30. |
N/A |
interface bridge-aggregation 2 |
interface bridge-aggregation 2 |
Enter the view of the aggregate interface connecting to Device C and Device D. |
N/A |
port link-type trunk |
port link-type trunk |
Set the link type of the Layer 2 aggregate interface to trunk. |
N/A |
port trunk permit vlan 20 |
port trunk permit vlan 20 |
Assign the interface to VLAN 20. |
N/A |
undo port trunk permit vlan 1 |
undo port trunk permit vlan 1 |
Remove the interface from VLAN 1. |
N/A |
port lacp system-priority 101 |
port lacp system-priority 100 |
Set the LACP priority. |
Set different LACP priorities for different DR member devices, so that only member ports with a higher priority are selected upon brain split. |
quit |
quit |
Return to system view. |
N/A |
interface bridge-aggregation 3 |
interface bridge-aggregation 3 |
Enter the view of the aggregate interface connecting to Device G. |
N/A |
port link-type trunk |
port link-type trunk |
Set the link type of the Layer 2 aggregate interface (Bridge-Aggregation 3) to trunk. |
N/A |
port trunk permit vlan 30 |
port trunk permit vlan 30 |
Assign the interface to VLAN 30. |
N/A |
undo port trunk permit vlan 1 |
undo port trunk permit vlan 1 |
Remove the interface from VLAN 1. |
N/A |
port lacp system-priority 101 |
port lacp system-priority 100 |
Set the LACP priority. |
Set different LACP priorities for different DR member devices, so that only member ports with a higher priority are selected upon brain split. |
quit |
quit |
Return to system view. |
N/A |
interface vlan-interface 30 |
interface vlan-interface 30 |
Create VLAN-interface 30. |
N/A |
ip address 30.1.1.1 255.255.255.0 |
ip address 30.1.1.1 255.255.255.0 |
Assign an IPv4 address to VLAN-interface 30. |
The address acts as the IPv4 dual-active gateway. |
mac-address 0030-0030-0030 |
mac-address 0030-0030-0030 |
Assign a MAC address to VLAN-interface 30. |
N/A |
ipv6 address 30:1::1 64 |
ipv6 address 30:1::1 64 |
Assign an IPv6 address to VLAN-interface 30. |
The address acts as the IPv6 dual-active gateway. |
quit |
quit |
Return to system view. |
N/A |
drni mad exclude interface Vlan-interface30 |
drni mad exclude interface Vlan-interface30 |
Exclude VLAN-interface 30 from the shutdown action by DRNI MAD. |
N/A |
interface vlan-interface 20 |
interface vlan-interface 20 |
Create VLAN-interface 20. |
N/A |
ip address 20.1.1.2 255.255.255.0 |
ip address 20.1.1.2 255.255.255.0 |
Assign an IPv4 address to VLAN-interface 20. |
The address is the address of the interface connecting to aggregation devices. |
mac-address 0020-0020-0021 |
mac-address 0020-0020-0021 |
Assign a MAC address to VLAN-interface 20. |
N/A |
ipv6 address 20:1::2 64 |
ipv6 address 20:1::2 64 |
Assign an IPv6 address to VLAN-interface 20. |
The address is the address of the interface connecting to aggregation devices. |
quit |
quit |
Return to system view. |
N/A |
drni mad exclude interface Vlan-interface20 |
drni mad exclude interface Vlan-interface20 |
Exclude VLAN-interface 20 from the shutdown action by DRNI MAD. |
N/A |
Configuring OSPF between DR member devices
Configuring Device C and Device D
Device C |
Device D |
Description |
Remarks |
router id 3.3.3.3 |
router id 4.4.4.4 |
Configure a router ID. |
N/A |
ospf 1 |
ospf 1 |
Configure an OSPF process. |
N/A |
area 0 |
area 0 |
Configure an OSPF area. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface vlan-interface 10 |
interface vlan-interface 10 |
Enter VLAN interface view. |
N/A |
ospf 1 area 0.0.0.0 |
ospf 1 area 0.0.0.0 |
Enable OSPF on an interface. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface vlan-interface 20 |
interface vlan-interface 20 |
Enter VLAN interface view. |
N/A |
ospf 1 area 0.0.0.0 |
ospf 1 area 0.0.0.0 |
Enable OSPF on an interface. |
N/A |
quit |
quit |
Return to system view. |
N/A |
ospfv3 1 |
ospfv3 1 |
Configure an OSPFv3 process. |
N/A |
router-id 3.3.3.3 |
router-id 4.4.4.4 |
Configure a router ID. |
N/A |
area 0 |
area 0 |
Configure an OSFPv3 area. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface vlan-interface 10 |
interface vlan-interface 10 |
Enter VLAN interface view. |
N/A |
ospfv3 1 area 0.0.0.0 |
ospfv3 1 area 0.0.0.0 |
Enable OSPFv3 on an interface. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface vlan-interface 20 |
interface vlan-interface 20 |
Enter VLAN interface view. |
N/A |
ospfv3 1 area 0.0.0.0 |
ospfv3 1 area 0.0.0.0 |
Enable OSPFv3 on an interface. |
N/A |
port drni virtual-ip 20.1.1.103 255.255.255.0 active |
port drni virtual-ip 20.1.1.104 255.255.255.0 active |
Assign a DRNI virtual IPv4 address to an interface. |
The address is used to establish OSPF neighbor relationships between core devices and the peer DR member devices. |
port drni ipv6 virtual-ip FE80::6 link-local |
port drni ipv6 virtual-ip FE80::8 link-local |
Assign a DRNI virtual IPv6 address to an interface. |
The address is used to establish OSPFv3 neighbor relationships between core devices and the peer DR member devices. |
ospf peer sub-address enable 20.1.1.103 |
ospf peer sub-address enable 20.1.1.104 |
Enable OSPF to establish neighbor relationships through the secondary IP addresses of an interface. |
The same gateway interface on different DR member devices must be configured with the same IP address and MAC address. Therefore, the DR member devices cannot use the primary address of the interface to establish neighbor relationships with other devices. Therefore, you must enable OSPF to establish neighbor relationships through the secondary IP addresses of an interface. |
Configuring Device E and Device F
Device E |
Device F |
Description |
Remarks |
router id 1.1.1.1 |
router id 2.2.2.2 |
Configure a router ID. |
N/A |
ospf 1 |
ospf 1 |
Configure an OSPF process. |
N/A |
area 0 |
area 0 |
Configure an OSPF area. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface vlan-interface 20 |
interface vlan-interface 20 |
Enter VLAN interface view. |
N/A |
ospf 1 area 0.0.0.0 |
ospf 1 area 0.0.0.0 |
Enable OSPF on an interface. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface vlan-interface 30 |
interface vlan-interface 30 |
Enter VLAN interface view. |
N/A |
ospf 1 area 0.0.0.0 |
ospf 1 area 0.0.0.0 |
Enable OSPF on an interface. |
N/A |
quit |
quit |
Return to system view. |
N/A |
ospfv3 1 |
ospfv3 1 |
Configure an OSPFv3 process. |
N/A |
router-id 1.1.1.1 |
router-id 2.2.2.2 |
Configure a router ID. |
N/A |
area 0 |
area 0 |
Configure an OSPF area. |
N/A |
quit |
quit |
Return to system view. |
N/A |
interface vlan-interface 20 |
interface vlan-interface 20 |
Enter VLAN interface view. |
N/A |
ospfv3 1 area 0.0.0.0 |
ospfv3 1 area 0.0.0.0 |
Enable OSPFv3 on an interface. |
N/A |
port drni virtual-ip 20.1.1.101 255.255.255.0 active |
port drni virtual-ip 20.1.1.102 255.255.255.0 active |
Assign a DRNI virtual IPv4 address to an interface. |
The address is used to establish OSPF neighbor relationships between core devices and the peer DR member devices. |
port drni ipv6 virtual-ip FE80::2 link-local |
port drni ipv6 virtual-ip FE80::4 link-local |
Assign a DRNI virtual IPv6 address to an interface. |
The address is used to establish OSPFv3 neighbor relationships between core devices and the peer DR member devices. |
ospf peer sub-address enable 20.1.1.101 |
ospf peer sub-address enable 20.1.1.102 |
Enable OSPF to establish neighbor relationships through the secondary IP addresses of an interface. |
The same gateway interface on different DR member devices must be configured with the same IP address and MAC address. Therefore, the DR member devices cannot use the primary address of the interface to establish neighbor relationships with other devices. Therefore, you must enable OSPF to establish neighbor relationships through the secondary IP addresses of an interface. |
quit |
quit |
Return to system view. |
N/A |
interface vlan-interface 30 |
interface vlan-interface 30 |
Enter VLAN interface view. |
N/A |
ospfv3 1 area 0.0.0.0 |
ospfv3 1 area 0.0.0.0 |
Enable OSPFv3 on an interface. |
N/A |
Configuring the uplink device
Device G |
Description |
vlan 30 |
Create VLAN 30. |
quit |
Return to system view. |
interface bridge-aggregation 3 |
Create an aggregate interface connecting to Device E and Device F. |
link-aggregation mode dynamic |
Configure the aggregate interface to operate in dynamic mode. |
quit |
Return to system view. |
Interface range HundredGigE 2/0/1 HundredGigE 2/0/2 |
Enter the view of the physical interfaces connecting to Device E and Device F. |
port link-aggregation group 3 |
Assign physical interfaces to aggregation group 3. |
quit |
Return to system view. |
interface bridge-aggregation 3 |
Enter the view of the aggregate interface connecting to Device E and Device F. |
port link-type trunk |
Set the link type of the Layer 2 aggregate interface to trunk. |
port trunk permit vlan 30 |
Assign the interface to VLAN 30. |
undo port trunk permit vlan 1 |
Remove the interface from VLAN 1. |
quit |
Return to system view. |
Interface HundredGigE 2/0/64 |
Enter the view of the interface connecting to Server. |
port access vlan 30 |
Assign the interface to VLAN 30. |
Traffic forwarding models
Underlay traffic characteristics
The forwarding model matrix provides the following characteristics of underlay traffic:
· No.—Traffic number in the U-X-XXX format:
¡ U—Underlay traffic.
¡ X—Protocol number, which can be 4 (IPv4) or 6 (IPv6).
¡ XXX—Traffic sequence number.
· Traffic type—Type of underlay traffic, which can be IPv4 known unicast or IPv6 known unicast.
· Direction—Direction of underlay traffic. The value is south-north, which indicates traffic from the south to north.
· Forwarding path—Nodes that underlay traffic traverses.
· Traffic simulation—Traffic simulation method. Typically, a tester is used to simulate server traffic.
· Load—Traffic size, which can be light (less than 1000 flows) and heavy (more than 1000 flows).
· Traffic direction to firewalls/LB—No firewalls or LBs are used in this example. This field is not involved.
Forwarding models
No. |
Traffic type |
Direction |
Forwarding path |
Traffic simulation |
Load |
Traffic direction to firewalls/LB |
U-4-101 |
IPv4 known unicast |
South to north |
VM > DR system 1 > DR system 2 > DR system 3 > Server |
Tester |
Light |
N/A |
U-6-101 |
IPv6 known unicast |
South to north |
VM > DR system 1 > DR system 2 > DR system 3 > Server |
Tester |
Light |
N/A |
Testing network convergence upon single points of failure
Table 1 Network convergence upon single points of failure
Device |
Failure type |
Traffic interruption time |
DR |
Single point of failure on DR member links |
≤ 500 ms |
Single point of failure restored on DR member links |
0 ms |
|
IPL failure |
≤ 500 ms |
|
IPL failure restored |
≤ 10 ms |
|
Keepalive link failure |
0 ms |
|
Keepalive link failure restored |
0 ms |
|
Keepalive link and IPL failure |
≤ 5000 ms |
|
Keepalive link and IPL restored |
≤ 10000 ms |
|
Upgrading the devices |
≤ 500ms (legacy method, in which two DR member devices are separately upgraded) |
|
Expanding the network |
0 ms |
|
Replacing hardware |
Fixed-port device: ≤ 500 ms Modular device: · Device replacement: ≤ 1000 ms. · Switching fabric module replacement: 0 ms. · Service module replacement: ≤ 500 ms. |
Verifying the configuration
Verifying the status of the DR system
Verify that the DR system is working correctly on Device C and Device D. Use Device C as an example.
# Display summary information about the IPP and DR interface.
[DeviceC] display drni summary
Flags: A -- Aggregate interface down, B -- No peer DR interface configured
C -- Configuration consistency check failed
IPP: BAGG1
IPP state (cause): UP
Keepalive link state (cause): UP
DR interface information
DR interface DR group Local state (cause) Peer state Remaining down time(s)
BAGG2 2 UP UP -
BAGG3 3 UP UP -
# Verify that keepalive link is working correctly.
[DeviceC] display drni keepalive
Neighbor keepalive link status (cause): Up
Neighbor is alive for: 92565 s 440 ms
Keepalive packet transmission status:
Sent: Successful
Received: Successful
Last received keepalive packet information:
Source IP address: 220.1.1.4
Time: 2022/01/29 03:35:51
Action: Accept
Distributed relay keepalive parameters:
Destination IP address: 220.1.1.4
Source IP address: 220.1.1.3
Keepalive UDP port : 6400
Keepalive VPN name : N/A
Keepalive interval : 1000 ms
Keepalive timeout : 5 sec
Keepalive hold time: 3 sec
# Display the DR system settings.
[DeviceC] display drni system
System information
Local system number: 1 Peer system number: 2
Local system MAC: 0001-0001-0001 Peer system MAC: 0001-0001-0001
Local system priority: 124 Peer system priority: 124
Local bridge MAC: dcda-8037-2bc0 Peer bridge MAC: 9ce8-9573-aba2
Local effective role: Secondary Peer effective role: Primary
Health level: 0
Standalone mode on split: Enabled
In standalone mode: No
System timer information
Timer State Value (s) Remaining time (s)
Auto recovery disabled - -
Restore delay disabled 180 -
Consistency-check delay disabled 90 -
Standalone delay disabled 0 -
Role to None delay disabled 60 -
# Display detailed information about the IPP and DR interfaces.
[DeviceC] display drni verbose
Flags: A -- Home_Gateway, B -- Neighbor_Gateway, C -- Other_Gateway,
D -- IPP_Activity, E -- DRCP_Timeout, F -- Gateway_Sync,
G -- Port_Sync, H -- Expired
IPP/IPP ID: BAGG1/1
State: UP
Cause: -
Local DRCP flags/Peer DRCP flags: ABDFG/ABDFG
Local Selected ports (index): HGE1/0/26 (30)
Peer Selected ports indexes: 225
DR interface/DR group ID: BAGG2/2
Local DR interface state: UP
Peer DR interface state: UP
DR group state: UP
Local DR interface down cause: -
Remaining DRNI DOWN time: -
Local DR interface LACP MAC: Config=N/A, Effective=0001-0001-0001
Peer DR interface LACP MAC: Config=N/A, Effective=0001-0001-0001
Local DR interface LACP priority: Config=32768, Effective=124
Peer DR interface LACP priority: Config=32768, Effective=124
Local DRCP flags/Peer DRCP flags: ABDFG/ABDFG
Local Selected ports (index): HGE1/0/28 (40), HGE1/0/29 (45)
Peer Selected ports indexes: 235, 240
DR interface/DR group ID: BAGG3/3
Local DR interface state: UP
Peer DR interface state: UP
DR group state: UP
Local DR interface down cause: -
Remaining DRNI DOWN time: -
Local DR interface LACP MAC: Config=N/A, Effective=0001-0001-0001
Peer DR interface LACP MAC: Config=N/A, Effective=0001-0001-0001
Local DR interface LACP priority: Config=32768, Effective=124
Peer DR interface LACP priority: Config=32768, Effective=124
Local DRCP flags/Peer DRCP flags: ABDFG/ABDFG
Local Selected ports (index): HGE1/0/30 (50), HGE1/0/31 (55)
Peer Selected ports indexes: 245, 250
Verifying the routing protocols
# Display the OSPF neighbors of Device C.
[DeviceC] display ospf peer
OSPF Process 1 with Router ID 3.3.3.3
Neighbor Brief Information
Area: 0.0.0.0
Router ID Address Pri Dead-Time State Interface
1.1.1.1 20.1.1.101 1 36 2-Way/ - Vlan20
2.2.2.2 20.1.1.102 1 32 Full/BDR Vlan20
4.4.4.4 20.1.1.104 1 31 Full/DR Vlan20
# Display the OSPFv3 neighbors of Device C.
[DeviceC] display ospfv3 peer
OSPFv3 Process 1 with Router ID 3.3.3.3
Area: 0.0.0.0
-------------------------------------------------------------------------
Router ID Pri State Dead-Time InstID Interface
1.1.1.1 1 2-Way/ - 00:00:32 0 Vlan20
2.2.2.2 1 Full/BDR 00:00:40 0 Vlan20
4.4.4.4 1 Full/DR 00:00:34 0 Vlan20
# Display the OSPF neighbors of Device D.
[DeviceD] display ospf peer
OSPF Process 1 with Router ID 4.4.4.4
Neighbor Brief Information
Area: 0.0.0.0
Router ID Address Pri Dead-Time State Interface
1.1.1.1 20.1.1.101 1 36 Full/DROther Vlan20
2.2.2.2 20.1.1.102 1 33 Full/BDR Vlan20
3.3.3.3 20.1.1.103 1 33 Full/DROther Vlan20
# Display the OSPFv3 neighbors of Device D.
[DeviceD] display ospfv3 peer
OSPFv3 Process 1 with Router ID 4.4.4.4
Area: 0.0.0.0
-------------------------------------------------------------------------
Router ID Pri State Dead-Time InstID Interface
1.1.1.1 1 Full/DROther 00:00:33 0 Vlan20
2.2.2.2 1 Full/BDR 00:00:32 0 Vlan20
3.3.3.3 1 Full/DROther 00:00:32 0 Vlan20
# Display the OSPF neighbors of Device E.
[DeviceE] display ospf peer
OSPF Process 1 with Router ID 1.1.1.1
Neighbor Brief Information
Area: 0.0.0.0
Router ID Address Pri Dead-Time State Interface
2.2.2.2 20.1.1.102 1 38 Full/BDR Vlan20
3.3.3.3 20.1.1.103 1 38 2-Way/ - Vlan20
4.4.4.4 20.1.1.104 1 37 Full/DR Vlan20
# Display the OSPFv3 neighbors of Device E.
[DeviceE] display ospfv3 peer
OSPFv3 Process 1 with Router ID 1.1.1.1
Area: 0.0.0.0
------------------------------------------------------------------------
Router ID Pri State Dead-Time InstID Interface
2.2.2.2 1 Full/BDR 00:00:38 0 Vlan20
3.3.3.3 1 2-Way/ - 00:00:38 0 Vlan20
4.4.4.4 1 Full/DR 00:00:32 0 Vlan20
# Display the OSPF neighbors of Device F.
[DeviceF] display ospf peer
OSPF Process 1 with Router ID 2.2.2.2
Neighbor Brief Information
Area: 0.0.0.0
Router ID Address Pri Dead-Time State Interface
1.1.1.1 20.1.1.101 1 30 Full/DROther Vlan20
3.3.3.3 20.1.1.103 1 37 Full/DROther Vlan20
4.4.4.4 20.1.1.104 1 36 Full/DR Vlan20
# Display the OSPFv3 neighbors of Device F.
[DeviceF] display ospfv3 peer
OSPFv3 Process 1 with Router ID 2.2.2.2
Area: 0.0.0.0
-------------------------------------------------------------------------
Router ID Pri State Dead-Time InstID Interface
1.1.1.1 1 Full/DROther 00:00:38 0 Vlan20
3.3.3.3 1 Full/DROther 00:00:37 0 Vlan20
4.4.4.4 1 Full/DR 00:00:31 0 Vlan20
Upgrading the devices
Checking the environment
Execute the commands in "Verifying the configuration" and the following commands to verify that the device is available for an upgrade.
Device E |
Device F |
Description |
display device |
display device |
Displays device information. |
display boot-loader |
display boot-loader |
Displays current software images and startup software images. |
display version |
display version |
Displays system version information. |
Upgrading the devices
See H3C Switches DR System Upgrade & Replacement & Expansion Guide.
Verifying the traffic interruption time during the upgrade
Verify that the legacy upgrade method is used, in which the two DR member devices are upgraded one by one. Verify that the traffic interruption time is shorter than 500 ms during a switchover and shorter than 150 ms during fallback when the traffic load is light. For more information, see “Testing network convergence upon single points of failure.”
Verifying the upgrade result
Execute the commands in "Verifying the configuration" and the following commands to verify that the device is upgraded successfully.
Device E |
Device F |
Description |
display device |
display device |
Displays device information. |
display boot-loader |
display boot-loader |
Displays current software images and startup software images. |
display version |
display version |
Displays system version information. |
Expanding the network
An expansion operation adds two leaf devices.
Checking the environment
Execute the commands in "Verifying the configuration" and the following commands to verify that the device is available for an expansion.
DR 1 |
DR 2 |
Description |
display device |
display device |
Displays device information. |
display boot-loader |
display boot-loader |
Displays current software images and startup software images. |
display version |
display version |
Displays system version information. |
Expanding the network
1. Disconnect the device from network management systems.
2. Upgrade the software of the device as needed.
3. Preconfigure the device.
4. Connect the device to network management systems.
5. Incorporate the device on the controller.
Verifying the traffic interruption time
For more information, see “Testing network convergence upon single points of failure.”
Verifying the expansion result
Execute the following commands to verify that the device is added successfully.
DR 1 |
DR 2 |
Description |
display device |
display device |
Displays device information. |
display boot-loader |
display boot-loader |
Displays current software images and startup software images. |
display version |
display version |
Displays system version information. |
Replacing hardware
Replacing a service module
Checking the environment
Execute the commands in “Verifying the configuration" and the following commands to verify that the target device is available for a replacement.
DR 1 |
DR 2 |
Description |
display device |
display device |
Displays device information. |
display boot-loader |
display boot-loader |
Displays current software images and startup software images. |
display version |
display version |
Displays system version information. |
Replacing hardware
Switch service and management traffic on the target service module to other service modules.
Power off the device and replace the service module, or replace the service module when the device is running. For more information, see the installation guides for the service module.
For details, see H3C Switches DR System Upgrade & Replacement & Expansion Guide.
Verifying the traffic interruption time
For more information, see “Testing network convergence upon single points of failure.”
Verifying the replacement result
Execute the commands in "Checking the environment."
Replacing a switching fabric module
Checking the environment
Execute the commands in “Verifying the configuration" and the following commands to verify that the target device is available for a replacement.
DR 1 |
DR 2 |
Description |
display device |
display device |
Displays device information. |
display boot-loader |
display boot-loader |
Displays current software images and startup software images. |
display version |
display version |
Displays system version information. |
Replacing hardware
Power off the device and replace the switching fabric module, or replace the switching fabric module when the device is running. For more information, see the installation guides for the switching fabric module.
Verifying the traffic interruption time
For more information, see “Testing network convergence upon single points of failure.”
Verifying the replacement result
Execute the commands in "Checking the environment."
Replace a device
Checking the environment
Execute the commands in “Verifying the configuration" and the following commands to verify that the target device is available for a replacement.
DR 1 |
DR 2 |
Description |
display device |
display device |
Displays device information. |
display boot-loader |
display boot-loader |
Displays current software images and startup software images. |
display version |
display version |
Displays system version information. |
Replacing hardware
See H3C Switches DR System Upgrade & Replacement & Expansion Guide.
Verifying the traffic interruption time
For more information, see “Testing network convergence upon single points of failure.”
Verifying the replacement result
Execute the commands in "Checking the environment."