[j-nsp] EX Series | 10.4R3.4 Limited Received Routes

[Chris Evans]

Yeah that is correct. You should check the messages log and you should see
some messages about this.  I always set. 'Keep home's under bgp and do input
filters to make sure this doesn't accidentally happen..  the routes you want
might not make it through.
On Apr 30, 2011 11:48 AM, "Bill Blackford" <bblackford at gmail.com> wrote:
> So if what you are saying is that the EX, only being capable of 16k
> routes, will only "Receive" and "Accept" a random smattering of a full
> table being sent up to 16k and any filters beyond that filter on the
> 16k "Received" and installs that balance as "Active"?
>
> If this assumption is correct, then what I'm seeing is expected behavior?
>
> -b
>
>
>
> On Sat, Apr 30, 2011 at 8:30 AM, Chris Evans <chrisccnpspam2 at gmail.com>
wrote:
>> Ex doesn't have the capability to go above 16k routes due to low
>> capabilities of the platform.. You are seeing it protect itself. Anything
>> under this number and it should make them all active if it can pass the
>> process.
>>
>> On Apr 30, 2011 11:10 AM, "Bill Blackford" <bblackford at gmail.com> wrote:
>>> -- Sorry if this posts twice. It was posted yesterday and I didn't see
>>> it come though --
>>>
>>> I'm seeing some strange behavior with a EX3200 10.4R3.4 with how it
>>> receives bgp routes.
>>> The output below shows peer 172.16.2.12 that is sending a full table.
>>> The EX is accepting a 0.0.0.0/0 exact and 0.0.0.0/0 upto /19. I should
>>> be seeing 350k in the Received and about 28k in the Active (yes, I
>>> know EX's can't handle 28k). What it appears is happening is that I'm
>>> only 'Receiving' a subset of the full table and then a /0 upto /19
>>> smattering of that 65k.
>>>
>>>
>>> admin at ex3200-24t> show bgp summary
>>> Groups: 2 Peers: 2 Down peers: 1
>>> Table Tot Paths Act Paths Suppressed History Damp State Pending
>>> inet.0 16365 4371 0 0 0 0
>>> Peer AS InPkt OutPkt OutQ Flaps Last
>>> Up/Dwn State|#Active/Received/Accepted/Damped...
>>> 172.16.2.12 64512 92672 2035 0 0
>>> 15:12:10 4371/16365/4372/0 0/0/0/0
>>>
>>> Here's my import policy. Fairly basic.
>>>
>>> policy-statement BGPIMPORT {
>>> term SEQ-100 {
>>> from {
>>> protocol bgp;
>>> route-filter 0.0.0.0/0 exact;
>>> route-filter 0.0.0.0/0 upto /19;
>>> }
>>> then accept;
>>> }
>>> term SEQ-101 {
>>> then reject;
>>> }
>>> }
>>>
>>> Now in contrast, a SRX210 is seeing:
>>>
>>> admin at SRX210-TEST> show bgp summary
>>> Groups: 2 Peers: 2 Down peers: 0
>>> Table Tot Paths Act Paths Suppressed History Damp State Pending
>>> inet.0 353872 76 0 0 0 0
>>> Peer AS InPkt OutPkt OutQ Flaps Last
>>> Up/Dwn State|#Active/Received/Accepted/Damped...
>>> 172.16.2.12 64512 173198 6642 0 2 2d
>>> 2:00:56 75/353871/76/0 0/0/0/0
>>>
>>> Obviously my SRX import policy is different and therefore accepting
>>> less, however the point is that the 'Received' is consistent with what
>>> I would expect to see on the EX3200.
>>>
>>> admin at SRX210-TEST> show version
>>> Hostname: SRX210-TEST
>>> Model: srx210b
>>> JUNOS Software Release [10.2R3.10]
>>>
>>>
>>>
>>> So, if the EX is filtering a percentage of the received routes, is
>>> this proportional? IOW, if I should be receiving 8k routes, do I only
>>> see 1k being received?
>>> Is this new undesired behavior introduced in 10.4R3.4? I don't have
>>> another EX in test that I can verify this with earlier code. I don't
>>> know if I can downgrade to say a 10.2 version now that my Resilient
>>> Dual-Root Partitions and new jloader are installed. It would be nice
>>> to verify this on earlier code and submit a bug if it's warranted.
>>>
>>> Thank you in advance for any thoughts on this.
>>>
>>> -b
>>>
>>> --
>>> Bill Blackford
>>> Network Engineer
>>>
>>> Logged into reality and abusing my sudo privileges.....
>>> _______________________________________________
>>> juniper-nsp mailing list juniper-nsp at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/juniper-nsp
>>
>
>
>
> --
> Bill Blackford
> Network Engineer
>
> Logged into reality and abusing my sudo privileges.....