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Archive for March 26th, 2010

QoS Trust Boundaries

March 26th, 2010 No comments

Cisco switches perform most Quality of Service (QoS) operations in hardware, while routers perform QoS functions in software. It is best practice to use the switch to perform deep packet classification and marking functionality on the switches. The router will need to re-classify the packet, but the classification can be on the DSCP marking rather than a transport layer port number. Read more…

Categories: CISCO, Network Design, QoS Tags:

Configure SSH on Cisco Router

March 26th, 2010 No comments

This is a basic configuration to set up SSH on a Cisco router: Read more…

Categories: CISCO, Security Tags:

QoS Policy – Throttle Bandwidth During Certain Times in the Day

March 26th, 2010 No comments

Scenario:  A servers automatic database replication causes bandwidth utilisation to increase, so we need a QoS policy to throttle the server traffic during the working day (including weekends): Read more…

Categories: CISCO Tags:

IOS Version Numbering

March 26th, 2010 No comments

Cisco IOS is versioned using three numbers and some letters, in the general form a.b(c.d)e, where: Read more…

Categories: CISCO Tags: