04-24-2012 01:53 AM
Hi all,
As in the attached diagram at Router A, Traffic from Network 1 to Network 2 is taking path A-D. But in case of the failure on A-D link, Traffic must switchover to path A-B-D. A,B and D are the Cisco 7606 and actiing as MPLS P routers. Traffic engineering tunnels are UP between Network 1 & 2.
OSPF is the IGP runnung.
how can we test how much time the router (A) took to switch between paths, from (1/1) to (2/1) in milli seconds ?
04-26-2012 07:20 AM
Hi,
Not sure but you should rely on logs
like
Apr 25 21:11:26.155 UTC: %MPLS_TE-5-TUN: Tun228: LSP path change............................
Regards # Mahesh
04-27-2012 06:51 AM
Hello Sajan,
in addition to looking to the log timestamps as suggested by Mahesh, if this a testing lab scenario and you have a traffic generator instrument, you could send traffic from network1 to network2 doing a frame loss test.
Given a constant TX packet rate (i.e. for example 1000 packets/s) the number of packets lost during TE FRR switchover will give you a measure of network convergence time from the point of view of user traffic,
This would be a meaningful test.
Hope to help
Giuseppe
04-28-2012 11:01 PM
HI Larosa,
This seems to be very good idea. I will testing this within this week and update.. Meanwhile please post any other idea pops out.
Regards
Sajan John
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