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ASR 1002-X: cef has been disabled due to a low memory condition


We try to replace our 7204vxr NPE-G2 with some ASR1002-X with 4GB of memory.

Everything looks good, vrrp is working, bgp internal is also working.

But as soon as we enable one upstream with full tables, the router shows the following:

"cef has been disabled due to a low memory condition"


and bgp resets.

how is this possible? the NPE-G2 has 2 GB of Memory, the ASR1002-X has 4GB, should be no problem?

Config on interface:

interface GigabitEthernet0/0/1
 description upstream xy
 ip address
 ip access-group 100 in
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 negotiation auto
 ipv6 address xxxx:xxxx:3::1F:2/112
 ipv6 enable
 ipv6 nd ra suppress
 no ipv6 redirects
 no cdp enable

 neighbor activate
  neighbor send-community
  neighbor next-hop-self
  neighbor remove-private-as
  neighbor weight 100
  neighbor soft-reconfiguration inbound
  neighbor prefix-list AS-COMPANY out
  neighbor route-map upstream-In in
  neighbor route-map upstream-Out out

Is there something we miss? some big difference from the 7204 to the asr 1002?

many thanks!





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Cisco Employee

Check if this does not apply

Check if this does not apply:

If it's not open a TAC case.

New Member

Thanks for the reply, but i

Thanks for the reply, but i get:

Insufficient Permissions to View Bug
This bug contains proprietary information and is not yet publicly available.
Cisco Support Community
Cisco Employee

Pasting in the notes 

Pasting in the notes 

Documentation error in Cisco ASR 1000 Series Route Processor Data Sheet


The performance tab in table 5 states support up to 1,000,000 IPv4 or 1,000,000 IPv6 routes, but does not specify the recommended memory. Realistically, ASR 1002-X with 4GB memory can support 500k IPv4 or 500k IPv6 routes uni-dimensionally. 

BGP is configured to receive close to 500,000 routes that cause memory utilization to spike.

Please see the link:

This specifies that 4 GB DRAM ASR1002-X cannot more than 500,000 routes.


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