Hangzhou H3C Technologies Co., Ltd. provides several ways for your convenience to obtain documentations (such as product and newly-added-feature documentations) in time. You can obtain documentations in the following ways:

l CD-ROMs shipped with devices

l H3C website

l Software release notes

1.1 CD-ROM

H3C delivers a CD-ROM together with each device. The CD-ROM contains a complete product documentation set, including the operation manual, command manual, installation manual, and compatibility manual. After installing the reader program provided by the CD-ROM, you can search for the desired contents in a convenient way through the reader interface.

For reasons such as product version upgrade, the manual contents in the CD-ROM are subject to change without notice. Therefore, the contents in the CD-ROM may not be the latest version. This document only serves as user guide. Unless otherwise noted, all information in the document does not claim or imply any warranty. For the latest software documentation, go to the H3C website.

1.2 H3C Website

Perform the following steps to query and download product documentation from the H3C website.

Table 1-1 Obtain product documentation from the H3C website

Register	Log into http:// www.h3c.com. Click [Login/Register] on the home page. Enter your username and password and click <Register>.
Obtain product documentation	Click [Documentation Center] on the home page to find the documentation by product category. Select a product to display the detailed list of the product. Specify a device type and select a manual for that product.

Log into http:// www.h3c.com. Click [Login/Register] on the home page. Enter your username and password and click <Register>.

Obtain product documentation

Click [Documentation Center] on the home page to find the documentation by product category.

Select a product to display the detailed list of the product.

Specify a device type and select a manual for that product.

1.3 Software Release Notes

With software upgrade, new software features may be added. You can acquire information about newly added software features through software release notes.

Chapter 2 Related Software Release

2.1 Related Software Release

The two manuals, H3C S7500 Series Ethernet Switches Operation Manual Release 3100 and H3C S7500 Series Ethernet Switches Command Manual Release 3100, are corresponding to the software Release 3135 of the S7500 series products.

2.2 Related Documentation

Table 2-1 Related documentation

Manual	Version
H3C S7500 Series Ethernet Switches Installation Manual	(V1.01)
H3C S7502 Ethernet Switch Installation Manual	(V1.01)
H3C S7500 Series Ethernet Switches Operation Manual – Release 3100	(V1.04)
H3C S7500 Series Ethernet Switches Command Manual – Release 3100	(V1.04)

Chapter 3 Product Overview

3.1 Introduction

H3C S7500 Series Ethernet Switches (hereinafter referred to as the S7500 series) are a series of wire-speed Layer 2/3 Ethernet switching products with modular architecture and high-capacity. Among this series, S7503, S7506 and S7506R are oriented to the aggregation layer of IP metropolitan area networks (MANs) and the core layer of small- and medium-sized enterprise networks and campus networks; and S7502 is oriented to the aggregation and access layers of IP MANs and the core layer of small- and medium-sized networks. The S7500 series provide powerful switching capability and increase network availability; they have good scalability, high performance and powerful network control ability.

3.2 Available Switch Models

Table 3-1 lists the available models of the S7500 series.

Table 3-1 Available models of the S7500 series

Switch Model	Power supply	Total slots	Switching engines	Service cards
S7502	AC/DC redundant power supplies	2	Single switching engine, in slot 0	One, in slot 1
S7503		4	Single switching engine, in slot 0	Three, in slot 1 to 3
S7506		7	Single switching engine, in slot 0	Six, in slot 1 to 6
S7506R		8	Dual redundant switching engines, in slot 0 and 1	Six, in slot 2 to 7

3.3 Switching Engines

Switching engines are the cores of the S7500 series. The switching engines you can select depend on the switch model you select. Table 3-2 and Table 3-3 list the switching engines available to different S7500 switch models.

Table 3-2 Switching engines available to S7503/S7506/S7506R

Engine model	Available to…
Salience III (LS81SRPG)	S7503, S7506, S7506R
Salience III Plus (LS81SRPG1)	S7503, S7506, S7506R
Salience III Edge (LS81SRPG3)	S7503, S7506, S7506R

Table 3-3 Switching engines available to S7502

Engine model	Description
LS81P12TE	4-port 10/100/1000Base-T + 12-port 1000Base-X (SFP) GE SRPU
LS81T12PE	12-port 10/100/1000Base-T + 4-port 1000Base-X (SFP) GE SRPU
LS81T16P	16-port 10/100/1000Base-T + 8-port 1000Base-X (SFP) GE SRPU, supporting high-speed XG bus
LS81T32P	32-port 10/100/1000Base-T + 16-port 1000Base-X (SFP) GE SRPU, supporting high-speed XG bus
LS81GT48B	48-port 10/100/1000Base-T GE SRPU, supporting high-speed XG bus
LS81GP48	48-port 1000Base-X (SFP) GE SRPU, supporting high-speed XG bus
LS81TGX2	2-port 10GBase-XFP 10GE SRPU, supporting high-speed XG bus
LS81TGX4	4-port 10GBase-XFP 10GE SRPU, supporting high-speed XG bus

3.3.1 Switching Engines and Available Service Cards

There are various models of switching engines and services cards that you can choose for the S7500 series. But note that the service cards you can select depend on the switching engine you select. Table 3-4 and Table 3-5 list the service cards available to different switching engines.

Table 3-4 Switching engines and available service cards for S7503/S7506/S7506R

Switching engine Service card	Salience III	Salience III Plus	Salience III Edge
LS81FT48E	√	√	√
LS81FT48F	√	√	√
LS81FP48	√	√	√
LS81GT8UE	√	—	√
LS82GT20	√	√	√
LS82GT20A	√	√	√
LS81GT48	√	√	√
LS81GT48A	√	√	√
LS81GT48B	√	√	—
LS81T12P	√	√	√
LS81T12PE	√	√	√
LS81T16P	√	√	—
LS81T32P	√	√	—
LS81P12T	√	√	√
LS81P12TE	√	√	√
LS81GP8UB	√	—	√
LS82GP20	√	√	√
LS82GP20A	√	√	√
LS81GP48	√	√	—
LS81TGX1C	√	√	√
LS81TGX2	√	√	—
LS81TGX4	√	√	—
LS81VSNP	√	√	—

Table 3-5 Switching engines and available service cards for S7502

Switching engine Service card	LS81T12PE/ LS81P12TE	LS81T16P	LS81T32P	LS81GT48B	LS81GP48	LS81TGX2	LS81TGX4
LS81FT48E	√	—	—	—	—	—	—
LS81FT48F	√	—	—	—	—	—	—
LS81FP48	√	—	—	—	—	—	—
LS81GT8UE	√	—	—	—	—	—	—
LS82GT20	√	—	—	—	—	—	—
LS82GT20A	√	—	—	—	—	—	—
LS81GT48	√	—	—	—	—	—	—
LS81GT48A	√	—	—	—	—	—	—
LS81GT48B	—	√	√	√	√	√	√
LS81T12P	√	—	—	—	—	—	—
LS81T12PE	√	—	—	—	—	—	—
LS81T16P	—	√	√	√	√	√	√
LS81T32P	—	√	√	√	√	√	√
LS81P12T	√	—	—	—	—	—	—
LS81P12TE	√	—	—	—	—	—	—
LS81GP8UB	√	—	—	—	—	—	—
LS82GP20	√	—	—	—	—	—	—
LS82GP20A	√	—	—	—	—	—	—
LS81GP48	—	√	√	√	√	√	√
LS81TGX1C	√	—	—	—	—	—	—
LS81TGX2	—	√	√	√	√	√	√
LS81TGX4	—	√	√	√	√	√	√
LS81VSNP	—	√	√	√	√	√	√

3.3.2 Switching Engines and Available Switch Chassis

S7503, S7506 and S7506R each have two chassis for you to choose. Table 3-6 lists the switching engines and available chassis for S7503/S7506/S7506R.

Table 3-6 Switching engines and available chassis for S7503/S7506/S7506R

Engine Chassis	Salience III	Salience III Plus	Salience III Edge
S7503	√^[1]	√^[1]	√^[1]
S7503 XGbus	√	√	√
S7506	√	√	√
S7506 XGbus	√	√	√
S7506R	√^[2]	√	√^[2]
S7506R XGbus	√	√	√

^[1]: When an Salience III series engine is used together with an S7503 chassis (with no XGbus silkscreen), you must use the product 7503 command in system view to identify the device as an S7503 switch and then restart the switch.

^[2]: When a Salience III/Salience III Edge engine is used together with an S7506R chassis (with no XGbus silkscreen), the four SFP interfaces on the engine will not work.

3.4 Software Features

The S7500 series provide rich software features, thus meeting the requirements of different users. Table 3-7 lists the software features in different modules.

Table 3-7 Software features of the S7500 series

Module	Features supported
01-CLI	l Command line interface (CLI) l Hierarchical protection for commands l Online help for commands
02-Login	l Local login through the Console port l Telnet/SSH login through an Ethernet port l Modem login through the Console port l NMS Login
03-Configuration file management	Saving/restoring/deleting configuration file
04-VLAN	l IEEE 802.1Q-compliant VLAN (virtual local area network) l Port-based VLAN l Protocol-based VLAN
05-Extended VLAN application	l Voice VLAN l isolate-user-VLAN l Super VLAN
06-IP address-IP performance-IPX	l IP address configuration of the switch l TCP attribute configuration of the switch l IPX (internetwork packet exchange)
07-GVRP	GVRP (GARP VLAN registration protocol)
08-QinQ	l QinQ (that is, VLAN VPN) l Flexible QinQ
09- Port Basic configuration	l Three port states: access, trunk, hybrid l Global broadcast suppression on ports l Loopback detection l Cable test
10-Link Aggregation	LACP (link aggregation control protocol)
11-Port Isolation	Port isolation group configuration
12-Port Binding	MAC address-to-port binding
13-DLDP	DLDP (device link detection protocol)
14-MAC Address Table	l Manually configuring dynamic/static MAC address entries l Configuring the aging time of MAC address entries l Configuring the maximum number of MAC addresses that can be learned on a port l Inter-chip synchronization of MAC address entries
15-MSTP	l STP (spanning tree protocol)/RSTP (rapid STP)/MSTP (multiple STP) l QinQ BPDU tunneling l H3C's MSTP path cost standard
16-Routing Protocol	l Static routing l RIP (routing information protocol) v1/v2 l OSPF (open shortest path first) l BGP (border gateway protocol) l IS-IS (intermediate system-to-intermediate system) l Route policy
17-Multicast	l IGMP Snooping (internet group management protocol snooping) l IGMP (internet group management protocol) l PIM-DM (protocol-independent multicast-dense mode) l PIM-SM (protocol-independent multicast-sparse mode)
18-802.1x	l 802.1x authentication l Guest VLAN l HABP (Huawei authentication bypass protocol)
19-AAA-RADIUS-HWTACACS-EAD	l AAA (authentication, authorization and accounting) l RADIUS (remote authentication dial-in user service) l HWTACACS (Huawei terminal access controller access control system) l EAD (endpoint admission defense)
20-Traffic Accounting	Only supported by the LS81VSNP service card
21-VRRP-HA	l VRRP (virtual router redundancy protocol) l HA (high availability)
22-ARP	l Gratuitous ARP l ARP source suppression l Manual configuration of ARP entries l Proxy ARP
23-DHCP	l DHCP Server (DHCP: dynamic host configuration protocol) l DHCP Relay l DHCP Snooping l Option 82 in DHCP Relay l Option 82 in DHCP Snooping
24-ACL	l Basic ACL (access control list) l Advance ACL l Layer 2 ACL l User-defined ACL
25-QoS	QoS (quality of service)
26-Mirroring	l Traffic mirroring l Port mirroring l Remote port mirroring (RSPAN, remote switched port analyzer) l Remote traffic mirroring
27-Cluster	l HGMP (Huawei group management protocol) v2 l NDP (neighbor discovery protocol) l NTDP (neighbor topology discovery protocol)
28-PoE	l PoE (power over Ethernet) l PoE PSU supervision
29-UDP-Helper	UDP broadcast forwarding implemented through UDP Helper
30-SNMP-RMON	l SNMP v3, and SNMP v1/v2 compatibility (SNMP: simple network management protocol) l RMON (remote monitoring)
31-NTP	l NTP (network time protocol)
32-SSH Terminal Service	l SSH (secure shell) l SFTP (secure FTP)
33-File System Management	File system management
34-FTP and TFTP	l FTP Server/Client l TFTP Client
35-Information Center	l System logging l Hierarchical alarming l Debugging output
36-DNS	DNS (domain name system)
37-System Maintenance and Debugging	l Configuring system time l Displaying and configuring system status
38-HWPing	HWPing
39-RRPP	RRPP (rapid ring protection protocol)
40-NAT-Netstream-Policy Routing	l NAT (network address translation) l NetStream l policy routing
41-Telnet Protection	Remote login protection
42-Hardware-Dependent Software Configuration	l PoE DIMM (dual in-line memory module) memory card software upgrade l Boot ROM upgrade by app file l Inter-card link state adjust l Internal channel monitor

Chapter 4 Networking Applications

The high-capacity, Layer 2/3 S7500 Series Ethernet Switches are mainly designed for IP MANs, large-sized enterprise networks and campus networks. They can serve as aggregation switches to play important role in MANs, or serve as core switches in enterprise or campus networks. This series, together with the H3C S3100/S3600/S5600/S9500 series and Huawei's MA5200 Ethernet access management system, allows for comprehensive solutions for MAN and enterprise networking.

The following sections describe several typical networking applications of the S7500 series.

4.1 Application in a MAN

Typically, an S7500 series switch can be used at the aggregation layer in a MAN. In upstream direction, the switch is connected to a Layer 3 switch (for example, a H3C S9500 series routing switch) or a GSR (Gigabit switching router) in the backbone network through a GE link across long/ultra-long haul dark fiber cable (you can also use multi-GE Trunk to increase upstream bandwidth). In downstream direction, the switch is connected to the egress Layer 2/3 Ethernet switches (for example, H3C S3100/3600/S7500 series switches) in LANs through GE ports across long/ultra-long haul dark fiber cables (you can also use multi-GE Trunk to increase downstream bandwidth).

Figure 4-1 Application in a MAN

4.2 Application in a Small/Medium-Sized Enterprise Network

Typically, an S7500 series switch can be used at the backbone layer in a small/medium-sized enterprise network. The switch is connected to its neighboring devices as follows: In the downstream direction, the switch is connected to the Layer 2/3 Ethernet switches (for example, H3C S3100/S3600 series switches) of workgroups or directly connected to user's workstations through GE/FE optical or electrical ports; it is connected to other floors/buildings through GE optical ports (long- or short-haul) or multi-GE Trunks; and it is connected to server groups through GE/FE electrical ports. In the upstream direction, it is connected to a router through a 10/100 Mbps electrical port.

Figure 4-2 Application in a small/medium-sized enterprise network

4.3 Application in a Large-Sized Campus Network

Typically, an S7500 series can be used at the aggregation or backbone layer in a large-sized campus network. In this case, it is often deployed in cabling room or center office. In the downstream direction, the switch is connected to the workgroup/campus-level Layer 2/3 Ethernet switches (H3C S3100/S3600 series switches) through GE/FE optical or electrical ports. In the upstream direction, it is connected to a backbone Ethernet switch or a router through a GE optical/electrical port.

Figure 4-3 Application in a large-sized campus network

4.4 PoE Application

Through the GE/FE electrical ports on a PoE-supported card, an S7500 series switch can supply power to PoE-supported PDs (powered devices, such as wireless WLAN APs, IP phones and corridor switches) across twisted pairs.

Figure 4-4 PoE application

H3C S7500 Series Operation Manual(Release 3100 Series)-(V1.04)

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