ACE Routed mode basic configuration

24/09/2012

No point rewriting a very good definition..

http://docwiki.cisco.com/wiki/Basic_Load_Balancing_Using_Routed_Mode_on_the_Cisco_Application_Control_Engine_Configuration_Example

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ACE one arm mode basic configuration

24/09/2012

No point rewriting a very good definition..

http://docwiki.cisco.com/wiki/Basic_Load_Balancing_Using_Routed_Mode_on_the_Cisco_Application_Control_Engine_Configuration_Example


NEXUS the gap analysis

24/09/2012

So, what is the big difference between a 6500 and a Nexus appliance. I’m looking at the pragmatic view and ignoring the features (it’s all about features). On that note then the components and or updates include OTV and VPC.

I’ll add some more updates as I plunge or plough my way thru the documentation and configurations. Today’s view may change…


ICMP Ping and log batch file

24/09/2012

This batch file is designed to ping for 1 minute and send the output to a log file. The process then time and date stamps the log and the ping starts again. If there is a connectivity issue it will be clearly visible in the log.

:TOP

echo %time% >> c:\ping.log
echo %date% >> c:\ping.log

Ping x.x.x.x -n 60 >>c:\ping.log

GOTO TOP


MPLS (BGP) Route Target or Route Distinguisher

24/09/2012

The differences between an RT and an RD are:

The RT Community value identifies (TAG) the prefixes which are to be exported from a VRF. This TAG is then used to identify the prefixes to be imported by a remote PE router.

The RD helps to identify the VRF ownership of information by tagging a value to the packet forwarded through the network. Much like a .1P tag it references the VRF to use.


EIGRP Neighbor (Neighbour) relationships

24/09/2012

The following elements are key for EIGRP enabled routers to create neighbor relationships with their peers:

IP Connectivity (source IP of hellos in same subnet)

K Values
AS Number
Authentication Key if configured


OSPF Adjecencies

24/09/2012

The following elements are key for OSPF enabled routers to create adjacencies with their peers:

IP Connectivity
Same area ID
Timers (hello and dead intervals)
MTU
Authentication Key if used
Stub Area Flag

Link:

http://www.cisco.com/en/US/tech/tk365/technologies_white_paper09186a0080094e9e.shtml