ASR Route Scale
Table of Contents
Introduction
Different generation of line cards, can hold different number of prefixes, MAC addresses, bridge domains.
Trident
- By default trident line cards have 512K ipv4 prefixes, but can be expended to 1.3M. See table below.

- Based on https://tools.cisco.com/bugsearch/bug/CSCul97045, 5.1.1 version might have trident scale changed by default to support 1M routes.
Typhoon
- Typhoon line cards have different processors for L2 and L3.
- The hardware profiles scale doesn't apply to Typhoon line cards.
- 2 M MAC addresses.
- 4 M IP addresses.
Relevant Commands
hw-module profile scale
Changes the hardware scale profile.
RP/0/RSP1/CPU0:router(admin-config)# hw-module profile scale (default | l3 | l3xl)
show cef platform resource summary location
Shows the utilization of ipv4/ipv6 prefixes and how much more is available.
RP/0/RSP0/CPU0:r1# sh cef platform resource summary location 0/0/CPU0
Show hw-module profile scale
show hw-module profile scale