[c-nsp] can I use | pipe line such as "| inc xxx" and regexp such as "regexp ^$" both , when I execute "show bgp "

[Mark Tinka]

On Friday, October 01, 2010 10:48:57 pm Per Carlson wrote:

> The CRS-1 isn't *that* new any more.

I know, I meant in terms of its evolution from a core to a 
peering to an edge platform. Not just the CRS, but also IOS 
XR.

It's been around a while, but still making in-roads and 
still developing.

I've always had concerns about earlier versions of IOS XR 
being appropriate (or not) for edge applications. I will say 
3.9 is much better than earlier versions, but we still think 
this is overkill for a CRS. Perhaps an ASR9000.

But hey, YMMV :-).

> We did an upgrade from 3.5 to 3.6 on our CRS-1's last
> winter (northern hemisphere). At that time Cisco
> Advanced Services didn't recommend using any newer than
> 3.6. Neither 3.8 nor 3.9 didn't add any "must have"
> features, and 3.6 had significantly more exposures in
> the wild (read: used in production).

There's a bunch of features we've been accustomed to in 
JUNOS and IOS that we needed in IOS XR. It's probably a good 
thing we boarded the CRS bandwagon late, which made 
transitioning that much less difficult, e.g., the ability to 
ignore an IS-IS ATT bit, e.t.c.

> It became a lot better when Cisco pulled the plug on
> ASR14k, and instead ships the LC's to the CRS.

Yes, those FP40 forwarding boards offer great value.

Mark.
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