Hi Anrey,
Did you investigate the high cpu on the bsr-candidate node before
starting down this process of ripping out vrf relavant configs?
Sounds like you may have caused iBGP to go down (I would not term it a
crash), likely due to high cpu resulting from the removal of multiple
vrfs at the same time. Seems that all the configuration removal that
you did was just a continuous snowball of route-churn/high cpu inducing
commands.
If I were you, I would go back to the scenario where you just had high
cpu on the one device, and where the full multicast configuration was
deployed as had been successfully tested, and get TAC on the line to see
how they are related.
Do you have any output captured from when you had high cpu the first time?
Rob
On 10/12/2010 9:32 AM, Anrey Teslenko wrote:
Hello all,
We are trying to implement multicast VPN in our network.
On PE routers which we use now installed 12.2 (33r) SRE2 IOS
The hardware platform is 7604 RSP720
The typical configuration was implemented on routers and was successful
tested, but
after finishing the tests, we were observed high cpu utilization on
bsr-candidate (not on RP)
and on it BGP neighbor, which don't participate in multicast routing.
However this no so badly how the removal vrfs (no ip vrf) which participate
in MVPN.
We were observed crash of all iBGP session after this command was applied.
I find only the case CSCse41600 which nearest for my problem, but the router
not crashed, only iBGP.
Bgp sessions were cleared but this don't help and only after full reload
problem was resolved.
Workaround (CSCse41600) doesn't help -- I trying delete MVPN step by step,
the first was replaced bgp configuration, then has removed ip pim and ip
forwarding vrf from
all used interfaces, then "no multicast routing", only after that I began
remove configuration in vrf line by line.
However after deleting default tree configuration (no mdt default ) iBGP
sessions crashed again.
Can someone please give me some hints to solve this problem?
Can it's not good idea to use SRE2 for MVPN?
Thanks in advance!
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