Techniques for maintaining and configuring Cisco LAN Switches

Overview of LAN Switches

The LAN switch has developed into a more expansive space from the traditional hub-and-LAN. For example, Cisco's Catalyst 5000 series LAN switch includes an integrated switched hardware architecture that supports switched 10-mbps Ethernet and 100-mbps Fast Ethernet, with Fast Ethernet, FDDI, switched token Ring, and layer 3rd switching capabilities. This class of switches can provide exchange access to workstations, servers, network segments, backbone networks, or other users within the LAN.

Cisco iOS software provides advanced network services for Catalyst platforms and network applications. Cisco IOS technology is optimized for switching and is available for all catalyst switches, including: fast ether channel technology for bandwidth sets, Cisco Group Management protocol support for multicast and multimedia traffic performance, and extensive management features. Cisco iOS software also supports virtual local area network (VLAN) configuration and management, IP address management, and secure network service access.

Catalyst 6000 Series Introduction

Catalyst 6,000 families, including Catalyst 6500 series and Catalyst 6000 series, provide a series of new high-performance multi-layer switching solutions for the campus network. The Catalyst 6,000 families are designed to meet the increased demand for gigabit scalability, high availability, and multi-layer switching in the backbone/distribution and server collection environments, delivering superior scalability and cost performance, and supporting a wide range of interface densities, performance, and high-availability options. By providing application intelligence, quality of service mechanisms, and security, customers can more effectively leverage their networks to increase customer service (for example, multicast and ERP applications) without sacrificing network performance. Combined with the extensive network services of Cisco IOS, the Catalyst 6,000 families are able to provide the strong management, user mobility, security, high-availability, and multimedia support needed for an enterprise intranet.

Catalyst 5000 Series Introduction

In addition to Catalyst 5000, Cisco's Catalyst 5000 series switches include 5505 models Catalyst 5002, Catalyst 5500, Catalyst 5509, Catalyst Four, all of which are cataly St 5000 enhanced type. This period works for the Catalyst 5509 switch for the old equipment. Taking the commonly used Catalyst 5509 as an example, the Catalyst 5509 Rack has 9 slots, the first slot is used for the Supervisor engine module, the module provides the 2nd layer Exchange and the remote network management, the module has two ports, Full-duplex Fast Ethernet interface. Other Catalyst 5000, routers, and servers can be connected at a maximum rate of 400Mbps, and the second slot is the Supervisor Engine module that is used to plug the backup. The other 7 slots can be used to assemble any switching module and the routing Switch Module (RSM). The Catalyst 5509 chassis is suitable to be fixed on a standard 19-inch rack. All system parts can be operated on the same side of the chassis. A complete system must be configured with a power supply. In order to achieve fault tolerance, optional dual backup, load balanced, can be charged plug power.

Catalyst 6000 series and Catalyst 5000 series Basic Maintenance

The Catalyst 6000 series and Catalyst 5000 series LAN switches are powerful, including many use and maintenance commands. Below, list a few commonly used commands and simple instructions. Please refer to the manuals provided with the hardware equipment for all relevant maintenance orders.

Set port Name

Set port name Mod_num/port_num [name_string]

Set Port Priority

Set Port level Mod_num/port_num Noramal

Set Port rate

Set port speed Mod_num/port_num < auto >

Set Port Transport Type

Set port duplex mod_num/port_num full Half

Check Port configuration Status

Show Port Mod_num/port_num

2 about network Port SC0 settings

Set up logical ports for physical connections in the VLAN

Sc0 set interface sc0 vlan_num [IP_Address [Netmask [broadcast]]]

3 About VLAN settings

Defines the serial number, name, and type of a VLAN

Set VLAN vlan_num [name name] [Type type] Check VLAN configuration status Show VLAN

4 about the trunk test

To establish a relay on a specific port

Set Trunk Mod_num/port_num [on off desirable auto] [VLANs]

Check the configuration status of the relay

Show Trunk

5 About Spantree Settings

Set in a VLAN

Spantree set spantree enable [VLAN]

To set the forwarding delay of a bridge in a VLAN

Set Spantree fwddelay delay [VLAN]

Set the send interval for hello messages in a VLAN

Set Spantree hello interval [VLAN]

To set the maximum duration of a bridge in a VLAN

Set Spantree maxage agingtime [VLAN]

Set the bridge path cost for a port

Set Spantree portcost mod_num/port_num cost

6 about the configuration of the SNMP protocol

Configuring SNMP Domain Strings: Set SNMP Community read-only read-write Read-write-all community_string

Set a restricted address or domain: Set SNMP trap rcvr_address rcvr_community

Check SNMP configuration status: Show SNMP

7 About IP Packet segmentation

Set the IP packet's segmented set IP fragmentation {enable disable} in FDDI and Ethernet bridging

8 About ICMP Unreachable messages

Set IP unreachable {enable disable}

9 about the ARP table settings

Create an ARP table and set the refresh time for the table

Set ARP {ip_addr hw_addr agingtime agingtime}

10 about switch three-tier switching module configuration

Telnet ip_address Log into the three-tier switching module.

Rsm>enable

Rsm#show Run Displays the current configuration file

rsm#show int VLAN ID display VLAN Status

Rsm#show IP route Display routing information

Three-tier swap VLAN configuration:

Rsm#conf T

rsm (config) # int VLAN ID

rsm (config) # IP address A. B. C. D netmask

rsm (config) # no shutdown

RSM#WR Mem