Hello list,
I've run into a confusing topic - ASR9K fabric redundancy. We are using the
RSP-4G and the non-oversubscribed 8-port 10GE linecards. Currently we are only
using 4 of the 10GE interfaces in order to have full bandwidth fabric links
when an RSP fails. I've checked the documentation I could find online to verify
that the fabric looses half the capacity when an RSP fails but have been unable
to find any proof of that actually happening.
In:
http://www.cisco.com/en/US/docs/routers/asr9000/hardware/overview/guide/asr9kOVRGfuncdescription.html
figure 2-6 shows the fabric links from the linecards to the RSP switch fabric.
If I interpret this correctly, a 8x10GE non-overbooked linecard will have 2
double-line rate fabric connections to both the active and standby RSP and all
ports should stay at line rate when an RSP failure occurs.
Does anybody have any experience with fabric bandwidth when RSP failures occur,
or when only one RSP is installed?
Thx!
Rutger
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