I have recently look at the FIB TCAM usage on a 7600 receiving bgp full view for IPv4 & IPv6 traffic :
L3 Forwarding Resources
Module FIB TCAM usage: Total Used %Used
1 72 bits (IPv4, MPLS, EoM) 524288 441646 84%
144 bits (IP mcast, IPv6) 262144 11920 5%
detail: Protocol Used %Used
IPv4 439598 84%
MPLS 2048 1%
EoM 0 0%
IPv6 11913 5%
IPv4 mcast 4 1%
IPv6 mcast 3 1%
If IPv4 subnetting continues as it goes, it seems that we will reach the the 500k routes at the end of year 2013. So I have some questions :
Do you think that specifying 750k ipv4 routes (with mls cef command -- need a reload ?) and 125k ipv6 routes is a good limit that will always fit in the 5 upcoming years (or will this routeur be over / should I consider to split IPv6 & IPv4 peers on different routers) ?
How do you see ipv6 subnet number growing ? If most AS have only one IPv6 subnet it should be OK (around 50k AS) but if AS number continues to grow / some AS pick multiple prefix, it could be hard to manage with this platform
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1. Log into CLI of DNAC:
ssh maglev@< DNAC appliance IP> -p 2222
2. Run this curl command to get token to get member id:
curl -X POST -u admin:<admin user password> -H -V https://<CLUSTER-IP>/api/system/v1/identitymgmt/token
Enterprise Switching Business Unit is glad to announce Beta release 16.12.2 for all Catalyst 9200/9300/9400/9500/9600 and Catalyst 3650/3850 Platforms. This release is made available to allow users to test, evaluate and share fee...
Purpose of the document
This document describes the general recommendations or best practices when designing and deploying the Cisco SD-Access technology. The document assumes that the reader has a general overview of Cisco's SD-Access for Distributed C...