Netflow - 

Requires an extra license
Only works at 1gig
So we did not bother.

-----Original Message-----
From: cisco-nsp [mailto:[email protected]] On Behalf Of Jason 
Lixfeld
Sent: Tuesday, December 19, 2017 1:31 PM
To: Cisco-nsp <[email protected]>
Subject: [c-nsp] ASR920 Opinions

This message originates from outside of your organisation.

Hey all,

With the ME3600 EOL, we’re looking to start deploying ASR920s.  These boxes 
would run 100% L3 on the core facing sides (at 10 or 20Gbps), and aside from 
the odd corner case, 100% L3 on the customer facing side.

Some of the more major features they’d run would be:
ISIS
LDP
BFD
BGP-VPNv4
BGP-VPNv6 (6VPE)
BGP Selective Route Download
IPv6*
ACL (ingress and egress)*
Per-VRF label mode
EoMPLS
FAT-PW
VRF aware DHCP Relay w/option 82 stamping (device, port (EFP?), VLAN) VRF aware 
DHCP Server

Corner cases would include BGP signalled VPLS w/BGP-AD, and l2protocol support 
for peer/forward/tunnel primarily on CDP and STP-type frames, as required.

*ME3600s cannot support simultaneous configuration of egress ACLs and IPv6.  
I’ve heard that the ASR920 resources are carved up differently, where this is 
no longer a problem.

My understanding is that the ASR920 behaves more like an ASR1000 than an ME3600 
in terms of how L2 is implemented (ie: no more global vlan table, vlan 
database, etc and all EFP/bridge-domain based).  Also, I understand that these 
boxes have Netflow to some degree, but a cursory look at the documentation 
seems to suggest that you need to set the SDM profile to video (which affects 
the device scale as it re-configured the TCAM) if you want to enable Netflow?

I know this isn't the first time a “what are your experiences with these boxes 
like?” thread has made the rounds, but I wanted to throw it out again to see 
how much has changed since the last time it circulated.  So, while we wait for 
some of these guys for the lab, I’m looking for some feedback on what to expect 
from these boxes in terms of reliability (hardware and software), feature 
limitations/gotchas, a good, reliable code version, and anything else someone 
might want to share about these guys, good, bad or indifferent.

Thanks again, in advance.
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