Colin, thx for the feedback.
--
Regards,
Ge Moua
Univ of Minn Alumnus
--
On 06/19/2013 06:36 PM, Colin Whittaker wrote:
This was all M108 and M132 cards.
We were doing both pim bidir and pim-sm.
The fib bugs were rare enough but we had enough scale that even at
something like 1 in 1000 error rates ment that we saw it frequently.
Thankfully we turned off multicast about 6 months ago so only the
unicast bugs to deal with.
The FIB bugs all relate to a fundamental defect in the n7k software
architecture in that the sup never validates that the linecards have
received the updates sent to the them so I would expect the f2 to have
similar issues.
In addition to the multicast issues we have seen unicast fib
inconsistency and interface mtus not matching.
Colin
On Wed, Jun 19, 2013 at 05:16:32PM -0500, Ge Moua wrote:
Colin-
Thx for the feedback. I'm looking at the the F2 cards on nx-7k; are you
doing this on the older M-series cards? Also are you also doing
specifically BiDir PIM? Standard PIM (SM specifically for use-case in
question here) seems to work but without some minor hiccups on the newer
F2 cards. Thx again.
:-)
--
Regards,
Ge Moua
Univ of Minn Alumnus
--
On 06/19/2013 04:35 PM, Colin Whittaker wrote:
It works pretty well on n7k.
The multicast code is prone to a class of bugs on the 7k where the fibs
on the line cards get out of sync with the rib/mrib on the sup.
We had multiple instances of routers blackholing traffic after topology
changes because linecards had missing routes.
reloading the line card would fix it but it was always a bugger to find
the affected cards.
colin
On Wed, Jun 19, 2013 at 12:04:25PM -0500, Ge Moua wrote:
c-nsp folks:
Anyone out there looking to do PIM BiDir on Nexus? There appears to be
some limitations with PIM BiDir on the nx-7k but the nx-6k may be a
viable option (albeit the hw arch between the nx-7k& nx-6k are not
exactly apples-for-apples). I'd appreciate opinion/feedback from others
here. Thanks in advance.
--
Regards,
Ge Moua
Univ of Minn Alumnus
--
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