The information in this document is subject to change without notice.

 

Contents

Introduction· 1

Prerequisites· 1

Example: Configuring multicast data transmission in a VRRP network· 1

Network configuration· 1

Analysis· 3

Software versions used· 3

Restrictions and guidelines· 3

Procedures· 4

Configuring VLANs, VLAN interfaces, and loopback interfaces· 4

Configuring OSPF· 5

Configuring link aggregation used for VRRP link backup· 5

Configuring VRRP groups· 6

Configuring multicast protocols· 7

Configuring BFD·· 8

Verifying the configuration· 9

Configuration files· 13

Related documentation· 20

 

Introduction

The following information provides an example for configuring multicast data transmission in a Virtual Router Redundancy Protocol (VRRP) network.

Prerequisites

Procedures and information in the examples might be slightly different depending on the software or hardware version of the products.

The configuration examples were created and verified in a lab environment, and all the devices were started with the factory default configuration. When you are working on a live network, make sure you understand the potential impact of every command on your network.

The following information is provided based on the assumption that you have basic knowledge of VRRP, Open Shortest Path First (OSPF), and multicast.

Example: Configuring multicast data transmission in a VRRP network

Network configuration

The campus network contains the egress gateways (Device A and Device B) and the core devices (Device C and Device D). The multicast source is deployed in the external network of the campus. The configuration requirements are as follows:

·     Horizontal redundancy: Implement redundancy for critical nodes in the network (Device A, Device B, Device C, and Device D) to enhance network reliability.

·     Vertical redundancy: Establish full-mesh connections between the egress gateways (Device A and Device B) and the core devices (Device C and Device D) to achieve link redundancy and backup.

·     Configure the border gateways and core devices to ensure correct and reliable transmission of multicast data to downstream networks.

Figure 1 Network diagram

 

Table 1 shows the data plan in this example.

Table 1 Data plan

 

Analysis

1.     Create VLANs on the devices and add the corresponding interfaces to the VLANs appropriately. Create a VLAN interface for each VLAN, and configure an IP address for the VLAN interface to ensure reachability of the local network.

2.     Configure OSPF on the devices to that they can communicate with one another at Layer 3. Implement load balancing for unicast traffic between the egress gateways and core devices, reducing the pressure on a single link that forwards both unicast and multicast data.

3.     Configure link aggregation for the links between Device A and Device B and between Device C and Device D to be used as backup links to transmit VRRP packets, improving VRRP network reliability.

4.     Create two VRRP groups on Device A and Device B to implement redundancy and backup between the devices. Create two VRRP groups on Device C and Device D to implement redundancy and backup between the devices.

5.     Configure multicast protocols on the devices to ensure correct forwarding of multicast data. Commonly used multicast protocols include Protocol Independent Multicast (PIM) and Internet Group Management Protocol (IGMP).

6.     Configure BFD for OSPF and BFD for PIM on each device to ensure fast link fault detection and implement fast convergence of unicast and multicast routes.

Software versions used

This configuration example was created and verified on Release 5210 or later versions of S12500R.

Restrictions and guidelines

In this configuration example, some physical interfaces are required to operate in Layer 2 mode. To change the link mode of a physical interface to Layer 2, execute the  port link-mode bridge command.

By default, interfaces on the device are disabled (in ADM or Administratively Down state). To have an interface operate, you must use the undo shutdown command to enable that interface.

To ensure correct network operation in a ring topology, perform the following operations:

·     Make sure STP is disabled for interconnected interfaces. STP might block a port in the ring network, which can interrupt other Layer 3 services. By default, STP is enabled on Layer 2 interfaces. You need to manually disable it.

·     Remove interconnected interfaces from VLAN 1 to prevent generating loops.

Procedures

Configuring VLANs, VLAN interfaces, and loopback interfaces

Configuring Device A

# Set the name of the device to Device A to facilitate management.

<Sysname> system-view

[Sysname] sysname DeviceA

# Create VLANs 10, 11, and 20.

[DeviceA] vlan 10 11 20

# Configure HGE 1/0/10, HGE 1/0/11, and HGE 1/0/20 as trunk ports, and assign them to VLAN 10, VLAN 11, and VLAN 20, respectively. (The default link type of an interface is access, and the interface is assigned to only VLAN 1.)

[DeviceA] interface hundredgige 1/0/10

[DeviceA-HundredGigE1/0/10] port link-type trunk

[DeviceA-HundredGigE1/0/10] port trunk permit vlan 10

[DeviceA-HundredGigE1/0/10] quit

[DeviceA] interface hundredgige 1/0/11

[DeviceA-HundredGigE1/0/11] port link-type trunk

[DeviceA-HundredGigE1/0/11] port trunk permit vlan 11

[DeviceA-HundredGigE1/0/11] quit

[DeviceA] interface hundredgige 1/0/20

[DeviceA-HundredGigE1/0/20] port link-type trunk

[DeviceA-HundredGigE1/0/20] port trunk permit vlan 20

[DeviceA-HundredGigE1/0/20] quit

# Create VLAN-interface 10 and configure its IP address as 10.1.10.1/24. Configure the IP address for VLAN-interface 11 as 10.1.11.1/24, and the IP address for VLAN-interface 20 as 10.1.1.20/24.

[DeviceA] interface vlan-interface 10

[DeviceA-Vlan-interface10] ip address 10.1.10.1 24

[DeviceA-Vlan-interface10] quit

[DeviceA] interface vlan-interface 11

[DeviceA-Vlan-interface11] ip address 10.1.11.1 24

[DeviceA-Vlan-interface11] quit

[DeviceA] interface vlan-interface 20

[DeviceA-Vlan-interface20] ip address 10.1.1.20 24

[DeviceA-Vlan-interface20] quit

# Create loopback interface 0 and configure its IP address as 1.1.1.1/32.

[DeviceA] interface loopback 0

[DeviceA-LoopBack0] ip address 1.1.1.1 32

[DeviceA-LoopBack0] quit

Configuring Device B

Configure the following settings on Device B in the same way Device A is configured. (Details not shown.)

·     Create loopback interface 0 and configure its IP address as 2.2.2.2/32.

·     Create VLAN 10, and configure the IP address for VLAN-interface 10 as 10.1.10.2/24.

·     Create VLAN 11, and configure the IP address for VLAN-interface 11 as 10.1.11.2/24.

·     Create VLAN 20, and configure the IP address for VLAN-interface 20 as 10.1.1.21/24.

Configuring Device C

Configure the following settings on Device C in the same way Device A is configured. (Details not shown.)

·     Create loopback interface 0 and configure its IP address as 3.3.3.3/32.

·     Create VLAN 10, and configure the IP address for VLAN-interface 10 as 10.1.10.3/24.

·     Create VLAN 11, and configure the IP address for VLAN-interface 11 as 10.1.11.3/24.

·     Create VLAN 20, and configure the IP address for VLAN-interface 20 as 10.1.20.20/24.

Configuring Device D

Configure the following settings on Device D in the same way Device A is configured. (Details not shown.)

·     Create loopback interface 0 and configure its IP address as 4.4.4.4/32.

·     Create VLAN 10, and configure the IP address for VLAN-interface 10 as 10.1.10.4/24.

·     Create VLAN 11, and configure the IP address for VLAN-interface 11 as 10.1.11.4/24.

·     Create VLAN 20, and configure the IP address for VLAN-interface 20 as 10.1.20.21/24.

Configuring OSPF

Configuring Device A

# Enable OSPF, add Device A to Area 0, and advertise the loopback interface IP address and network routes of interfaces within Area 0.

[DeviceA] ospf

[DeviceA-ospf-1] area 0

[DeviceA-ospf-1-area-0.0.0.0] network 1.1.1.1 0.0.0.0

[DeviceA-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255

[DeviceA-ospf-1-area-0.0.0.0] network 10.1.10.0 0.0.0.255

[DeviceA-ospf-1-area-0.0.0.0] network 10.1.11.0 0.0.0.255

[DeviceA-ospf-1-area-0.0.0.0] quit

[DeviceA-ospf-1] quit

Configuring Device B, Device C, and Device D

Configure Device B, Device C, and Device D in the same way Device A is configured. For more information, see Table 1. (Details not shown.)

Configuring link aggregation used for VRRP link backup

Configuring Device A

# Create Layer 2 aggregate interface Bridge-Aggregation 1 and set its aggregation mode to dynamic.

[DeviceA] interface bridge-aggregation 1

[DeviceA-Bridge-Aggregation1] link-aggregation mode dynamic

[DeviceA-Bridge-Aggregation1] quit

# Assign interfaces HundredGigE 1/0/1 and HundredGigE 1/0/2 to link aggregation group 1.

[DeviceA] interface hundredgige 1/0/1

[DeviceA-HundredGigE1/0/1] port link-aggregation group 1

[DeviceA-HundredGigE1/0/1] quit

[DeviceA] interface hundredgige 1/0/2

[DeviceA-HundredGigE1/0/2] port link-aggregation group 1

[DeviceA-HundredGigE1/0/2] quit

# Configure Layer 2 aggregate interface Bridge-Aggregation 1 as a trunk port and assign it to VLAN 20 for transmitting VRRP packets.

[DeviceA] interface bridge-aggregation 1

[DeviceA-Bridge-Aggregation1] port link-type trunk

[DeviceA-Bridge-Aggregation1] port trunk permit vlan 20

Configuring Device B, Device C, and Device D

Configure Device B, Device C, and Device D in the same way Device A is configured. For more information, see Table 1. (Details not shown.)

Configuring VRRP groups

Configuring VRRP group 1

1.     Configure Device A:

# Create VRRP group 1, assign priority 120 to Device A (for Device A to become the master), and set the preemption delay to 20 seconds. (The default priority is 100, and the device with the highest priority becomes the master. The preemption delay applies to only the master and the default value is 0 seconds. Set the preemption delay to 20 seconds to avoid frequent status switchover due to network instability.)

[DeviceA] interface vlan-interface 20

[DeviceA-Vlan-interface20] vrrp vrid 1 virtual-ip 10.1.1.253

[DeviceA-Vlan-interface20] vrrp vrid 1 priority 120

[DeviceA-Vlan-interface20] vrrp vrid 1 preempt-mode delay 20

[DeviceA-Vlan-interface20] quit

2.     Configure Device B:

# Create VRRP group 1, and assign the default priority to Device B (for Device B to become the backup).

<DeviceB> system-view

[DeviceB] interface vlan-interface 20

[DeviceB-Vlan-interface20] vrrp vrid 1 virtual-ip 10.1.1.253

[DeviceB-Vlan-interface20] quit

3.     Configure Device C:

# Create VRRP group 1, assign priority 120 to Device C (for Device C to become the master), and set the preemption delay to 20 seconds. (The default priority is 100, and the device with the highest priority becomes the master. The preemption delay applies to only the master and the default value is 0 seconds. Set the preemption delay to 20 seconds to avoid frequent status switchover due to network instability.)

<DeviceC> system-view

[DeviceC] interface vlan-interface 200

[DeviceC-Vlan-interface200] vrrp vrid 1 virtual-ip 10.1.20.253

[DeviceC-Vlan-interface200] vrrp vrid 1 priority 120

[DeviceC-Vlan-interface200] vrrp vrid 1 preempt-mode delay 20

[DeviceC-Vlan-interface200] quit

4.     Configure Device D:

# Create VRRP group 1, and assign the default priority to Device D (for Device D to become the backup).

<DeviceD> system-view

[DeviceD] interface vlan-interface 200

[DeviceD-Vlan-interface200] vrrp vrid 1 virtual-ip 10.1.20.253

[DeviceD-Vlan-interface200] quit

Configuring VRRP group 2

1.     Configure Device A:

# Create VRRP group 2, and assign the default priority to Device A (for Device A to become the backup).

[DeviceA] interface vlan-interface 20

[DeviceA-Vlan-interface20] vrrp vrid 2 virtual-ip 10.1.1.254

[DeviceA-Vlan-interface20] quit

2.     Configure Device B:

# Create VRRP group 2, assign priority 120 to Device B (for Device B to become the master), and set the preemption delay to 20 seconds.

[DeviceB] interface vlan-interface 20

[DeviceB-Vlan-interface20] vrrp vrid 2 virtual-ip 10.1.1.254

[DeviceB-Vlan-interface20] vrrp vrid 2 priority 120

[DeviceB-Vlan-interface20] vrrp vrid 2 preempt-mode delay 20

[DeviceB-Vlan-interface20] quit

3.     Configure Device C:

# Create VRRP group 2, and assign the default priority to Device C (for Device C to become the backup).

[DeviceC] interface vlan-interface 200

[DeviceC-Vlan-interface200] vrrp vrid 2 virtual-ip 10.1.20.254

[DeviceC-Vlan-interface200] quit

4.     Configure Device D:

# Create VRRP group 2, assign priority 120 to Device D (for Device D to become the master), and set the preemption delay to 20 seconds.

[DeviceD] interface vlan-interface 200

[DeviceD-Vlan-interface200] vrrp vrid 2 virtual-ip 10.1.20.254

[DeviceD-Vlan-interface200] vrrp vrid 2 priority 120

[DeviceD-Vlan-interface200] vrrp vrid 2 preempt-mode delay 20

[DeviceD-Vlan-interface200] quit

Configuring multicast protocols

Configuring Device A

# Enable IP multicast routing, and enable PIM-SM on the interfaces.

[DeviceA] multicast routing

[DeviceA-mrib] quit

[DeviceA] interface loopback 0

[DeviceA-LoopBack0] pim sm

[DeviceA-LoopBack0] quit

[DeviceA] interface vlan-interface 10

[DeviceA-Vlan-interface10] pim sm

[DeviceA-Vlan-interface10] quit

[DeviceA] interface vlan-interface 11

[DeviceA-Vlan-interface11] pim sm

[DeviceA-Vlan-interface11] quit

[DeviceA] interface vlan-interface 20

[DeviceA-Vlan-interface20] pim sm

[DeviceA-Vlan-interface20] quit

Configuring Device B

Configure Device B in the same way Device A is configured. (Details not shown.)

Configuring Device C

# Enable IP multicast routing, enable PIM-SM on the interfaces, and enable IGMP on the access interface.

[DeviceC] multicast routing

[DeviceC-mrib] quit

[DeviceC] interface loopback 0

[DeviceC-LoopBack0] pim sm

[DeviceC-LoopBack0] quit

[DeviceC] interface vlan-interface 10

[DeviceC-Vlan-interface10] pim sm

[DeviceC-Vlan-interface10] quit

[DeviceC] interface vlan-interface 11

[DeviceC-Vlan-interface11] pim sm

[DeviceC-Vlan-interface11] quit

[DeviceC] interface vlan-interface 200

[DeviceC-Vlan-interface200] pim sm

[DeviceC-Vlan-interface200] igmp enable

[DeviceC-Vlan-interface200] quit

# Configure Device as a dynamic RP.

[DeviceC] pim

[DeviceC-pim] c-bsr 3.3.3.3

[DeviceC-pim] c-rp 3.3.3.3

[DeviceC-pim] quit

Configuring Device D

Configure Device D in the same way Device C is configured. (Details not shown.)

Configuring BFD

Configuring Device A

# Enable BFD, configure BFD for OSPF, and configure BFD for PIM.

[DeviceA] bfd session init-mode active

[DeviceA] interface vlan-interface 10

[DeviceA-Vlan-interface10] ospf bfd enable

[DeviceA-Vlan-interface10] pim bfd enable

[DeviceA-Vlan-interface10] quit

[DeviceA] interface vlan-interface 11

[DeviceA-Vlan-interface11] ospf bfd enable

[DeviceA-Vlan-interface11] pim bfd enable

[DeviceA-Vlan-interface11] quit

[DeviceA] interface vlan-interface 20

[DeviceA-Vlan-interface20] ospf bfd enable

[DeviceA-Vlan-interface20] pim bfd enable

[DeviceA-Vlan-interface20] quit

Configuring Device B, Device C, and Device D

Configure Device B, Device C, and Device D in the same way Device A is configured. For more information, see Table 1. (Details not shown.)

Verifying the configuration

Verifying the link aggregation configuration

Verify that Layer 2 aggregate interface 1 on Device A, Device B, Device C, and Device D has two member ports: HundredGigE 1/0/1 and HundredGigE 1/0/2. Both ports are in Selected state.

Output example on Device A:

[DeviceA] display  link-aggregation verbose Bridge-Aggregation 1

Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing

Port Status: S -- Selected, U -- Unselected, I -- Individual

Port: A -- Auto port, M -- Management port, R -- Reference port

Flags:  A -- LACP_Activity, B -- LACP_Timeout, C -- Aggregation,

        D -- Synchronization, E -- Collecting, F -- Distributing,

        G -- Defaulted, H -- Expired

 

Aggregate Interface: Bridge-Aggregation1

Creation Mode: Manual

Aggregation Mode: Dynamic

Loadsharing Type: Shar

Management VLANs: None

System ID: 0x8000, 2a53-1c67-0100

Local:

  Port                Status   Priority Index    Oper-Key               Flag

  HGE1/0/1(R)         S        32768    1        1                      {ACDEF}

  HGE1/0/2            S        32768    2        1                      {ACDEF}

Remote:

  Actor               Priority Index    Oper-Key SystemID               Flag

  HGE1/0/1            32768    1        1        0x8000, 2a58-58b6-0200 {ACDEF}

  HGE1/0/2            32768    2        1        0x8000, 2a58-58b6-0200 {ACDEF}

Verifying the VRRP configuration

Verify that the following information exist:

·     Device A operates as the master in VRRP group 1. Device B operates as the backup in VRRP group 1.

·     Device A operates as the backup in VRRP group 2. Device B operates as the master in VRRP group 2.

·     Device C operates as the master in VRRP group 1. Device D operates as the backup in VRRP group 1.

·     Device C operates as the backup in VRRP group 2. Device D operates as the master in VRRP group 2.

Output example on Device A:

[DeviceA] display vrrp

IPv4 Virtual Router Information:

 Running mode : Standard

 Total number of virtual routers : 2

 Interface          VRID  State        Running Adver   Auth             Virtual

                                       Pri     Timer   Type                IP

 ----------------------------------------------------------------------------

 Vlan20             1     Master       120     100     Not supported    10.1.1.253

 Vlan20             2     Backup       100     100     Not supported    10.1.1.254

Output example on Device B:

[DeviceB] display vrrp

IPv4 Virtual Router Information:

 Running mode : Standard

 Total number of virtual routers : 2

 Interface          VRID  State        Running Adver   Auth             Virtual

                                       Pri     Timer   Type                IP

 ----------------------------------------------------------------------------

 Vlan20             1     Backup       100     100     Not supported    10.1.1.253

 Vlan20             2     Master       120     100     Not supported    10.1.1.254

Verifying the OSPF configuration

Execute the display ip routing-table command on Device A and Device B. You can see that two IP routes are available to reach network address 10.1.20.0/24 to implement unicast load sharing.

Output example on Device A:

<DeviceA> display ip routing-table

 

Destinations : 25       Routes : 25

 

Destination/Mask   Proto   Pre Cost        NextHop         Interface

0.0.0.0/32         Direct  0   0           127.0.0.1       InLoop0

1.1.1.1/32         Direct  0   0           127.0.0.1       InLoop0

3.3.3.3/32         O_INTRA 10  2           10.1.10.3       Vlan10

4.4.4.4/32         O_INTRA 10  1           10.1.11.4       Vlan11

10.1.1.0/24        Direct  0   0           10.1.1.20       Vlan20

10.1.1.0/32        Direct  0   0           10.1.1.20       Vlan20

10.1.1.20/32       Direct  0   0           127.0.0.1       InLoop0

10.1.1.253/32      Direct  1   0           127.0.0.1       InLoop0

10.1.1.255/32      Direct  0   0           10.1.1.20       Vlan20

10.1.10.0/24       Direct  0   0           10.1.10.1       Vlan10

10.1.10.0/32       Direct  0   0           10.1.10.1       Vlan10

10.1.10.1/32       Direct  0   0           127.0.0.1       InLoop0

10.1.10.255/32     Direct  0   0           10.1.10.1       Vlan10

10.1.11.0/24       Direct  0   0           10.1.11.1       Vlan11

10.1.11.0/32       Direct  0   0           10.1.11.1       Vlan11

10.1.11.1/32       Direct  0   0           127.0.0.1       InLoop0

10.1.11.255/32     Direct  0   0           10.1.11.1       Vlan11

10.1.20.0/24       O_INTRA 10  2           10.1.10.3       Vlan10

                                           10.1.11.4       Vlan11

127.0.0.0/8        Direct  0   0           127.0.0.1       InLoop0

127.0.0.0/32       Direct  0   0           127.0.0.1       InLoop0

127.0.0.1/32       Direct  0   0           127.0.0.1       InLoop0

127.255.255.255/32 Direct  0   0           127.0.0.1       InLoop0

224.0.0.0/4        Direct  0   0           0.0.0.0         NULL0

224.0.0.0/24       Direct  0   0           0.0.0.0         NULL0

255.255.255.255/32 Direct  0   0           127.0.0.1       InLoop0

Output example on Device B:

[DeviceB] display ip routing-table

 

Destinations : 26       Routes : 27

 

Destination/Mask   Proto   Pre Cost        NextHop         Interface

0.0.0.0/32         Direct  0   0           127.0.0.1       InLoop0

1.1.1.1/32         O_INTRA 10  1           10.1.1.20       Vlan20

2.2.2.2/32         Direct  0   0           127.0.0.1       InLoop0

3.3.3.3/32         O_INTRA 10  2           10.1.1.20       Vlan20

                                           10.1.10.4       Vlan10

4.4.4.4/32         O_INTRA 10  1           10.1.10.4       Vlan10

10.1.1.0/24        Direct  0   0           10.1.1.21       Vlan20

10.1.1.0/32        Direct  0   0           10.1.1.21       Vlan20

10.1.1.21/32       Direct  0   0           127.0.0.1       InLoop0

10.1.1.254/32      Direct  1   0           127.0.0.1       InLoop0

10.1.1.255/32      Direct  0   0           10.1.1.21       Vlan20

10.1.10.0/24       Direct  0   0           10.1.10.2       Vlan10

10.1.10.0/32       Direct  0   0           10.1.10.2       Vlan10

10.1.10.2/32       Direct  0   0           127.0.0.1       InLoop0

10.1.10.255/32     Direct  0   0           10.1.10.2       Vlan10

10.1.11.0/24       Direct  0   0           10.1.11.2       Vlan11

10.1.11.0/32       Direct  0   0           10.1.11.2       Vlan11

10.1.11.2/32       Direct  0   0           127.0.0.1       InLoop0

10.1.11.255/32     Direct  0   0           10.1.11.2       Vlan11

10.1.20.0/24       O_INTRA 10  2           10.1.10.4       Vlan10

                                           10.1.11.3       Vlan11

127.0.0.0/8        Direct  0   0           127.0.0.1       InLoop0

127.0.0.0/32       Direct  0   0           127.0.0.1       InLoop0

127.0.0.1/32       Direct  0   0           127.0.0.1       InLoop0

127.255.255.255/32 Direct  0   0           127.0.0.1       InLoop0

224.0.0.0/4        Direct  0   0           0.0.0.0         NULL0

224.0.0.0/24       Direct  0   0           0.0.0.0         NULL0

255.255.255.255/32 Direct  0   0           127.0.0.1       InLoop0

Verifying the multicast protocol configuration

The upstream multicast source 10.1.1.1 sends multicast data to multicast group 225.0.0.10, and the downstream user host has already joined multicast group 225.0.0.10.

# Execute the display pim routing-table command on Device B and Device D. You can see that the PIM route entry for multicast group 225.0.0.10 has been successfully established.

 

 

Output example on Device B:

[DeviceB] display pim routing-table

 Total 0 (*, G) entries; 1 (S, G) entries

 

 (10.100.1.1, 225.0.0.10)

     RP: 4.4.4.4

     Protocol: pim-sm, Flag: SPT ACT

     UpTime: 02:54:43

     Upstream interface: Vlan-interface20

         Upstream neighbor: 10.1.1.3

         RPF prime neighbor: 10.1.1.3

     Downstream interface information:

     Total number of downstream interfaces: 1

         1: Vlan-interface10

             Protocol: pim-sm, UpTime: 02:54:43, Expires: -

Output example on Device D:

[DeviceD] display pim routing-table

 Total 0 (*, G) entries; 1 (S, G) entries

 

 (10.100.1.1, 225.0.0.10)

     RP: 4.4.4.4

     Protocol: pim-sm, Flag: SPT ACT

     UpTime: 02:54:43

     Upstream interface: Vlan-interface10

         Upstream neighbor: 10.1.10.2

         RPF prime neighbor: 10.1.10.2

     Downstream interface information:

     Total number of downstream interfaces: 1

         1: Vlan-interface200

             Protocol: pim-sm, UpTime: 02:54:43, Expires: -

Verifying the BFD configuration

From the output information, you can see that the BFD session has been successfully established for OSPF and PIM.

Output example on Device A:

[DeviceA] display bfd session verbose

 Total sessions: 1     Up sessions: 1     Init mode: Active

 

 IPv4 session working in control packet mode:

          Local discr: 33793                      Remote discr: 33793

            Source IP: 10.1.1.20                Destination IP: 10.1.1.21

     Destination port: 3784                      Session state: Up

            Interface: Vlan-interface20

      Min Tx interval: 500ms                Actual Tx interval: 500ms

      Min Rx interval: 500ms                    Detection time: 2500ms

             Rx count: 367                            Tx count: 385

      Connection type: Direct                      Up duration: 00:02:43

            Hold time: 2432ms                        Auth mode: None

       Detection mode: Async                              Slot: 1

             Protocol: OSPF/PIM

              Version: 1                                   TTL: 255

            Diag info: No Diagnostic

        Hardware mode: Disable

Output example on Device B:

[DeviceB] display bfd session verbose

 Total sessions: 1     Up sessions: 1     Init mode: Active

 

 IPv4 session working in control packet mode:

          Local discr: 33793                      Remote discr: 33793

            Source IP: 10.1.1.21                Destination IP: 10.1.1.20

     Destination port: 3784                      Session state: Up

            Interface: Vlan-interface20

      Min Tx interval: 500ms                Actual Tx interval: 500ms

      Min Rx interval: 500ms                    Detection time: 2500ms

             Rx count: 740                            Tx count: 719

      Connection type: Direct                      Up duration: 00:05:11

            Hold time: 2233ms                        Auth mode: None

       Detection mode: Async                              Slot: 1

             Protocol: OSPF/PIM

              Version: 1                                   TTL: 255

            Diag info: No Diagnostic

        Hardware mode: Disable

Configuration files

·     Device A:

#

 sysname DeviceA

#

ospf 1

 area 0.0.0.0

  network 1.1.1.1 0.0.0.0

  network 10.1.1.0 0.0.0.255

  network 10.1.10.0 0.0.0.255

  network 10.1.11.0 0.0.0.255

#

vlan 10 to 11

#

vlan 20

#

interface Bridge-Aggregation1

 port trunk permit vlan 1 20

 link-aggregation mode dynamic

#

interface LoopBack0

 ip address 1.1.1.1 255.255.255.255

 pim sm

#

interface Vlan-interface10

 ip address 10.1.10.1 255.255.255.0

 ospf bfd enable

 pim sm

 pim bfd enable

#

interface Vlan-interface11

 ip address 10.1.11.1 255.255.255.0

 ospf bfd enable

 pim sm

 pim bfd enable

#

interface Vlan-interface20

 ip address 10.1.1.20 255.255.255.0

 ospf bfd enable

 pim sm

 pim bfd enable

 vrrp vrid 1 virtual-ip 10.1.1.253

 vrrp vrid 1 priority 120

 vrrp vrid 1 preempt-mode delay 20

 vrrp vrid 2 virtual-ip 10.1.1.254

#

interface HundredGigE1/0/1

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 20

 port link-aggregation group 1

#

interface HundredGigE1/0/2

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 20

 port link-aggregation group 1

#

interface HundredGigE1/0/10

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 10

#

interface HundredGigE1/0/11

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 11

#

interface Ten-HundredGigE1/0/20

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 20

#

multicast routing

#

return

·     Device B:

#

 sysname DeviceB

#

ospf 1

 area 0.0.0.0

  network 2.2.2.2 0.0.0.0

  network 10.1.1.0 0.0.0.255

  network 10.1.10.0 0.0.0.255

  network 10.1.11.0 0.0.0.255

#

vlan 10 to 11

#

vlan 20

#

interface Bridge-Aggregation1

 port link-type trunk

 port trunk permit vlan 1 20

 link-aggregation mode dynamic

#

interface LoopBack0

 ip address 2.2.2.2 255.255.255.255

 pim sm

#

interface Vlan-interface10

 ip address 10.1.10.2 255.255.255.0

 ospf bfd enable

 pim sm

 pim bfd enable

#

interface Vlan-interface11

 ip address 10.1.11.2 255.255.255.0

 ospf bfd enable

 pim sm

 pim bfd enable

#

interface Vlan-interface20

 ip address 10.1.1.21 255.255.255.0

 ospf bfd enable

 pim sm

 pim bfd enable

 vrrp vrid 1 virtual-ip 10.1.1.253

 vrrp vrid 2 virtual-ip 10.1.1.254

 vrrp vrid 2 priority 120

 vrrp vrid 2 preempt-mode delay 20

#

interface HundredGigE1/0/1

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 20

 port link-aggregation group 1

#

interface HundredGigE1/0/2

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 20

 port link-aggregation group 1

#

interface HundredGigE1/0/10

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 10

#

interface HundredGigE1/0/11

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 11

#

interface Ten-HundredGigE1/0/20

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 20

#

multicast routing

#

return

·     Device C:

#

 sysname DeviceC

#

ospf 1

 area 0.0.0.0

  network 3.3.3.3 0.0.0.0

  network 10.1.10.0 0.0.0.255

  network 10.1.11.0 0.0.0.255

  network 10.1.20.0 0.0.0.255

#

vlan 10 to 11

#

vlan 200

#

interface Bridge-Aggregation1

 port link-type trunk

 port trunk permit vlan 1 200

 link-aggregation mode dynamic

#

interface LoopBack0

 ip address 3.3.3.3 255.255.255.255

 pim sm

#

interface Vlan-interface10

 ip address 10.1.10.3 255.255.255.0

 ospf bfd enable

 pim sm

 pim bfd enable

#

interface Vlan-interface11

 ip address 10.1.11.3 255.255.255.0

 ospf bfd enable

 pim sm

 pim bfd enable

#

interface Vlan-interface200

 ip address 10.1.20.20 255.255.255.0

 ospf bfd enable

 pim sm

 pim bfd enable

 igmp enable

 vrrp vrid 1 virtual-ip 10.1.20.253

 vrrp vrid 1 priority 120

 vrrp vrid 1 preempt-mode delay 20

 vrrp vrid 2 virtual-ip 10.1.20.254

#

interface HundredGigE1/0/1

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 200

 port link-aggregation group 1

#

interface HundredGigE1/0/2

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 200

 port link-aggregation group 1

#

interface HundredGigE1/0/10

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 10

#

interface HundredGigE1/0/11

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 11

#

interface Ten-HundredGigE1/0/20

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 200

#

multicast routing

#

pim

 c-bsr 3.3.3.3

 c-rp 3.3.3.3

#

return

·     Device D:

#

 sysname DeviceD

#

ospf 1

 area 0.0.0.0

  network 4.4.4.4 0.0.0.0

  network 10.1.10.0 0.0.0.255

  network 10.1.11.0 0.0.0.255

  network 10.1.20.0 0.0.0.255

#

vlan 10 to 11

#

vlan 200

#

interface Bridge-Aggregation1

 port link-type trunk

 port trunk permit vlan 1 200

 link-aggregation mode dynamic

#

interface LoopBack0

 ip address 4.4.4.4 255.255.255.255

 pim sm

#

interface Vlan-interface10

 ip address 10.1.10.4 255.255.255.0

 ospf bfd enable

 pim sm

 pim bfd enable

#

interface Vlan-interface11

 ip address 10.1.11.4 255.255.255.0

 ospf bfd enable

 pim sm

 pim bfd enable

#

interface Vlan-interface200

 ip address 10.1.20.21 255.255.255.0

 ospf bfd enable

 pim sm

 pim bfd enable

 igmp enable

 vrrp vrid 1 virtual-ip 10.1.20.253

 vrrp vrid 2 virtual-ip 10.1.20.254

 vrrp vrid 2 priority 120

 vrrp vrid 2 preempt-mode delay 20

 

#

interface HundredGigE1/0/1

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 200

 port link-aggregation group 1

#

interface HundredGigE1/0/2

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 200

 port link-aggregation group 1

#

interface HundredGigE1/0/10

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 10

#

interface HundredGigE1/0/11

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 11

#

interface Ten-HundredGigE1/0/20

 port link-mode bridge

 port link-type trunk

 port trunk permit vlan 1 200

#

multicast routing

#

pim

 c-bsr 3.3.3.3

 c-rp 3.3.3.3

#

return

Related documentation

·     High Availability Configuration Guide in H3C S12500R Switch Router Series Configuration Guides-R52xx

·     High Availability Command Reference in H3C S12500R Switch Router Series Command References-R52xx

·     IP Multicast Configuration Guide in H3C S12500R Switch Router Series Configuration Guides-R52xx

·     IP Multicast Command Reference in H3C S12500R Switch Router Series Command References-R52xx

·     High Availability Configuration Guide in H3C S12500R-48Y8C&S12500R-48C6D Switch Router Configuration Guides-R52xx

·     High Availability Command Reference in H3C S12500R-48Y8C&S12500R-48C6D Switch Router Command References-R52xx

·     IP Multicast Configuration Guide in H3C S12500R-48Y8C&S12500R-48C6D Switch Router Configuration Guides-R52xx

·     IP Multicast Command Reference in H3C S12500R-48Y8C&S12500R-48C6D Switch Router Command References-R52xx