Mohacsi Janos wrote:
On Wed, 25 Mar 2009, Pshem Kowalczyk wrote:
Hi,
We're considering getting some ASR (1004 and 1006) as peering routers.
I would like to know what sort of experience you had with them.
What are the advantages of running the 'modular' IOS XE? We tried the
'modular' software on 6500 and we ran into some issues that we didn't
have on the integrated one.
Should we expect something similar from the ASR platform?
Dear Pshem,
We started to use ASR 1002 for WAN aggregation a while ago. We did
not have much experience with it, but I share what we have:
- We started to use 'monolithic' IOS XE, but recently upgraded to
'modular' version. We expecting that IOS XE rebuilds, similar to
12.2(x)Tn, where n is the rebuild number, does not require full reload
of the router. We could not prove this yet, since not much rebuild
exists for IOS XE. The full reload takes considerable more time than on
7200 or 7600.
- We wanted to implement QoS on virtual interface templates as we did on
7200. This not supported yet.
- We wanted to implement IPv6 on PPPoE with this device. however Cisco
claims the ASR 1000 series has IPv6 support, the IPv6 support exists
only for bridged mode broadband solution. Development of few hundred
lines of code is postponed recently :(
- The device has more horse-power and potential capabilities than 7200
with any NPE. It survived several DoS attacks, while 7200 died.
Interesting, the Control-plane in the IOS-XE, from what I understand, is
not the legacy piece IOS, correct ? Is this better DDoS survival because
of the raw CPU power being better, or because the attack was against a
downstream customer ? The IP under attack was the router itself ? Or
even better, it was some attack that would 'punt' traffic from the QFP
to the Route processor ?
For summary, the ASR100 platform for WAN aggregation is quite ready yet,
potentially it will be good in a year time.
Best Regards,
Janos Mohacsi
regards
Pshem
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