[Outages-discussion] BGP issues on December 6th

[Jason Lixfeld]

For those who may not know,

Where appropriate, the l3[xl] scale profiles on the A9K with Tridents will bump the 512K default up to 1M[1.3M], respectively.

https://supportforums.cisco.com/docs/DOC-25489

On Dec 9, 2013, at 1:25 PM, Jared Mauch <jared at puck.nether.net> wrote:

> 
> On Dec 9, 2013, at 1:03 PM, Florian Lohoff <f at zz.de> wrote:
> 
>> 
>> Hi,
>> 
>> On Mon, Dec 09, 2013 at 09:58:24AM -0800, Richard Hicks wrote:
>>> I was told by Charter a large BGP routing updated caused memory issues on
>>> some of their routers.
>>> I haven't had a chance to look into further.
>> 
>> We saw it on ASR9k Trident cards with full routing and default profile.
>> 
>> Complained about resource constrained cef mode, not adding cef
>> routes but only deleting.
> 
> I'm sure those folks that hit the 512k limit in various platforms (or are close to) will see ongoing issues.
> 
> Here's my "view" of the table from a few devices:
> 
> inet.0: 480263 destinations, 4865788 routes (479441 active, 30 holddown, 428851 hidden)
>              Direct:     15 routes,     14 active
>               Local:     10 routes,     10 active
>                 BGP: 4865009 routes, 478663 active
> 
> inet.2: 9654 destinations, 33774 routes (9653 active, 0 holddown, 327 hidden)
> 
> inet6.0: 18604 destinations, 161515 routes (18591 active, 9 holddown, 610 hidden)
>              Direct:     20 routes,     12 active
>               Local:     18 routes,     18 active
>                 BGP: 160884 routes,  17968 active
> 
> RP/0/RSP0/CPU0:Router#show route ipv6 sum
> 
> Route Source    Routes    Backup    Deleted    Memory (bytes)
> local           55        0         0          9020        
> connected       51        4         0          9020        
> static          6         0         0          1248        
> bgp 65000       17978     577       1          3113496     
> isis router     591       5         0          110504      
> Total           18681     586       1          3243288    
> 
> RP/0/RSP0/CPU0:Router#show route ipv4 sum
> 
> Route Source    Routes    Backup    Deleted    Memory (bytes)
> local           80        0         0          10880       
> local LSPV      1         0         0          136         
> local HSRP      2         0         0          272         
> connected       76        4         0          10880       
> connected ICPE  1         0         0          136         
> static          27        0         0          3912        
> bgp 65000       479051    612       1          66309264    
> dagr            0         0         0          0           
> isis router     627       5         0          95732       
> Total           479865    621       1          66431212   
> 
> 
> 
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