Wednesday, July 2nd, 2008


MTTR = 1 / Morale

Explanation:

MTTR is inversely proportional to Morale

If Morale is higher, then MTTR is lower or

If MTTR is lower, then Morale is higher.

MORALE: http://en.wikipedia.org/wiki/Morale

Morale, also known as esprit de corps when discussing the morale of a group, is an intangible term used for the capacity of people to maintain belief in an institution or a goal, or even in oneself and others.

MTTR: http://en.wikipedia.org/wiki/Mean_time_to_repair

MTTR is the average time that a system, device, link, network will take to recover from any failure.

A basic 802.1x configuration consists of the following:

Switch(config)# aaa new-model
Switch(config)# aaa authentication dot1x default group radius
Switch(config)# dot1x system-auth-control
Switch(config)# interface fastethernet0/10
Switch(config-if)# switchport mode access
Switch(config-if)# dot1x port-control auto

The configuration shown in the Exhibit results in 802.1x authentication against the configured RADIUS server.

More Information

802.1x Authentication

There are two BGP configuration commands that can influence the MED-based path selection, the bgp deterministic-med and the bgp always-compare-med commands.

Enabling the bgp deterministic-med command ensures the comparison of the MED variable when choosing routes advertised by different peers in the same autonomous system. Enabling the bgp always-compare-med command ensures the comparison of the MED for paths from neighbors in different autonomous systems. The bgp always-compare-med command is useful when multiple service providers or enterprises agree on a uniform policy for setting MED. Thus, for network X, if Internet Service Provider A (ISP A) sets the MED to 10, and ISP B sets the MED to 20, both ISPs agree that ISP A has the better performing path to X.

These two often commonly misunderstood. Read on for clarification.

Source: http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094925.shtml