Cisco – Page 2

Cisco Catalyst 6500 Management Access Restriction

To limit access to the management of the Cisco Catalyst 6500, first we make an access-list with IP addresses from which we will later allow us to connect to the device via SNMP, telnet, etc.:

Configuring Cisco Catalyst 2960

On the test I will configure Cisco Catalyst WS-C2960-24TT-L with firmware 12.2(25)FX

Red SYSTEM LED on SW-SUP720-3BXL

Once on a Cisco Catalyst 6509-E, I noticed that the SYSTEM LED on the WS-SUP720-3BXL is lit red.

Online diagnostics Cisco Catalyst 6500

In this article, I will describe the Cisco Catalyst 6500 online diagnostic commands.

WS-SUP720-3BXL does not start Not Applicable Unknown

Once after a power outage, on Cisco Catalyst 6509-E, instead of the main module WS-SUP720-3BXL, only the backup module was launched.
As I found out later, the memory card stopped working and, accordingly, the module could not start the firmware. At this moment on the module all the indicators glowed red.

List of network and network equipment emulators

I will give a short list of popular network emulators and network equipment:

How to configure SSH on Cisco

In this article I will write how to configure SSH on Cisco.

Connect to the device via telnet or console cable and switch to the privileged mode:

Configuring Cisco Catalyst 3750

On the test I will configure Cisco Catalyst WS-C3750-48TS-S with firmware 12.2(55)SE3.

View the temperature on the Cisco Catalyst 6500

I will use Cisco Catalyst 6509-E on the test.
To view the temperature of the sensors, connect via the console or telnet for example and execute the command:

List of SNMP OID and MIB for Cisco

Below is the list of SNMP OID that I used to create templates in Zabbix and other scripts.