Cisco LAN switch maintenance and configuration

Cisco LAN switches are still commonly used. So I studied the maintenance and configuration problems of Cisco LAN switches. I would like to share them with you here, hoping to help you. Cisco LAN switches have evolved from a HUB-based LAN shared in the traditional sense to a broader space.

Take Cisco's ipvst5000 series Cisco LAN switch as an example. It includes an integrated switching hardware structure, 10-Mbps Ethernet that supports switching, and-Mbps Fast Ethernet, supports fast Ethernet, FDDI, exchange-type ring, and layer-3 switching processing. These Cisco LAN switches provide exchange access to workstations, servers, CIDR blocks, backbone networks, or other users in the LAN. CiscoIOS software provides advanced network services for Catalyst platforms and network applications. CiscoIOS technology is optimized for switching and can be used for all Catalyst switches, including FastEther Channel Technology for bandwidth sets; Cisco group management protocol support for multi-point transfer and multimedia traffic performance is optimized; and extensive management features. Cisco IOS also supports VLAN configuration and management, IP address management, and secure network service access.

Introduction to the Catalyst6000 Series

The megast6000 family includes the megast6500 series and Catalyst 6000 series, providing a series of new high-performance multi-layer switching solutions for campus networks. The Catalyst 6000 family is designed to meet the increasing requirements for gigabit scalability, high availability, and multi-layer switching in Backbone Network/distribution and server collection environments, Delivering superior scalability and cost effectiveness, supports a wide range of interface density, performance, and high availability options. By providing Application Intelligence, service quality mechanisms, and security, customers can use their networks more effectively to increase customer services (such as multi-point transmission and ERP applications) without sacrificing network performance. In combination with Cisco IOS's extensive network services, the Catalyst 6000 family provides powerful management, user mobility, security, high availability, and multimedia support for enterprise intranets.

Introduction to the Catalyst5000 Series

Cisco's ipvst5000 series Cisco LAN switches, in addition to the Catalyst 5000, also include four models: Catalyst 5002, Catalyst 5500, Catalyst 5505, and Catalyst 5509, all of which are Catalyst 5000 enhanced. The old device used in this project is a Catalyst 5509 switch. Taking the common Catalyst 5509 as an example, there are nine slots in the Catalyst 5509 rack. The first slot is used in the Supervisor Engine module, which provides layer-3 switching and remote network management, the module has dual-port and full-duplex Fast Ethernet interfaces. The maximum speed of 5000 Mbps can be used to connect other Catalyst, routers and servers. The second slot is used to plug in the backup Supervisor Engine module. The other seven slots can be used in combination to configure any Switching Module and Routing Switching Module (RSM ). The Catalyst 5509 chassis is suitable for mounting to standard 19 inch racks. All system components can be operated on the same side of the chassis. One power supply must be configured for a complete system. For fault tolerance, you can select Dual Backup, Server Load balancer, and power supply that supports live plugging.

Basic Maintenance for the Catalyst6000 series and the Catalyst5000 Series

The ipvst6000 series and ipvst5000 series Cisco LAN switches provide powerful functions, including many usage and maintenance commands. Below are several common commands and simple descriptions. For all maintenance commands, see the related manual provided with the hardware device.

Set the Cisco LAN switch port name
Setportnamemod_num/port_num [name_string]

Set Cisco LAN switch port priority
Setportlevelmod_num/port_num noramal | high

Set Cisco LAN switch port Rate
Setportspeedmod_num/port_num <10 | 100 | auto>

Set Cisco LAN switch port transmission type
Setportduplexmod_num/port_num full | half

Check port configuration status
Showportmod_num/port_num

About sc0 settings

Set the logical port for physical connection in the VLAN
Sc0setinterfacesc0 vlan_num [ip_address [netmask [broadcast]

VLAN settings

Defines the serial number, name, and type of a VLAN.
Setvlanvlan_num [name] [type] Check VLAN configuration status show vlan

Test Trunk

Create a relay on a specific port
Settrunkmod_num/port_num [on | off | desirable | auto] [vlans]

Check the relay configuration status
Showtrunk

Spantree settings

Set in a vlan
Spantreesetspantreeenable [vlan]

Set the bridging forwarding latency in a vlan
Setspantreefwddelaydelay [vlan]

Set the hello message sending interval in a vlan
Setspantreehellointerval [vlan]

Sets the maximum duration of a vlan connection.
Setspantreemaxageagingtime [vlan]

Set the bridge path cost for a port
Setspantreeportcostmod_num/port_num cost

SNMP Protocol Configuration

Configure the SNMP domain string: setsnmpcommunity read-only | read-write-all community_string
Set a restricted address or domain: setsnmptrap rcvr_address rcvr_community
Check the SNMP configuration status: showsnmp

Segment of an IP package
Set the segment set ip fragmentation {enable | disable} of the ip package in the FDDI and Ethernet bridging}

Message about ICMP not arriving
Setipunreachable {enable | disable}

About ARP table settings
Create an arp table and set the refresh time of the table
Setarp {ip_addr hw_addr | agingtime}

Configuration of layer-3 Switch module for Cisco LAN switches
Telnetip_address: log on to the layer-3 Switching Module.
Rsm> enable
Rsm # showrun displays the current configuration file
Rsm # showintvlanid displays vlan status
Rsm # showiproute displays route information

Layer-3 Switch vlan configuration:
Rsm # conft
Rsm (config) # intvlanid
Rsm (config) # ipaddressa. B. C. D netmask
Rsm (config) # noshutdown
Rsm # wrmem