Routing
Routing

J6350 over-utilization of memory

‎03-06-2018 03:21 PM

Hello, and thanks for your time and attention.  I am trying to determine the best method of significantly reducing the memory usage on one of our J6350 routers (Rtr-1) without causing too many new problems.  The over-utilization is due to the BGP routing table size. 

Our current ideas and considerations:

- completely remove BGP on Rtr-1 and any associated configuration on the BGP neighbors

- possibly distribute a default route to Rtr-1 without advertising it to the upstream OSPF neighbors

- possibly create OSPF stub

Any and all responses are appreciated.

 

Current configs:

user@Rtr-1> show bgp summary
Groups: 1 Peers: 2 Down peers: 0
Table          Tot Paths  Act Paths Suppressed    History Damp State    Pending
inet.0
                 1351576    1351573          0          0          0          0
bgp.l3vpn.0
                       0          0          0          0          0          0
bgp.l2vpn.0
                       0          0          0          0          0          0
Peer                     AS      InPkt     OutPkt    OutQ   Flaps Last Up/Dwn State|#Active/Received/Accepted/Damped...
x.x.x.1                   xx    4459271     128646       0       1     5w3d19h Establ
  inet.0: 675785/675786/675786/0
  bgp.l3vpn.0: 0/0/0/0
  bgp.l2vpn.0: 0/0/0/0
x.x.x.2                   xx    3708683     128649       0       1     5w3d19h Establ
  inet.0: 675788/675790/675790/0
  bgp.l3vpn.0: 0/0/0/0
  bgp.l2vpn.0: 0/0/0/0

 

user@Rtr-1> show bgp group
Group Type: Internal    AS: xx                  Local AS: xx
  Name: iBGP-xx      Index: 0                   Flags: <Export Eval>
  Export: [ xx-TO-xx-EXPORT ]
  Options: <Multihop GracefulRestart LocalAS>
  Holdtime: 0 Local AS: xx Local System AS: 0
  Total peers: 2        Established: 2
  x.x.x.1+179
  x.x.x.2+179
  inet.0: 1351567/1351570/1351570/0
  bgp.l3vpn.0: 0/0/0/0
  bgp.l2vpn.0: 0/0/0/0

Groups: 1  Peers: 2    External: 0    Internal: 2    Down peers: 0   Flaps: 2
Table          Tot Paths  Act Paths Suppressed    History Damp State    Pending
inet.0
                 1351570    1351567          0          0          0          0
bgp.l3vpn.0
                       0          0          0          0          0          0
bgp.l2vpn.0
                       0          0          0          0          0          0

1 REPLY 1
Routing

Re: J6350 over-utilization of memory

‎03-07-2018 08:14 AM

Couple of points to consider.

 

1. Are you sure that it is only rpd which is cosuming all the memory ? - you may want to recheck the same using "show system proc extensive" to give you exact way ahead.

 

2. Rather than removing entire bgp config, you may just filter the default routes from both of the neighbors to reduce the size of the routing database and maintaining redundancy at least to start with.

 

After considering above, you may change further design if the it helps in reducing the memory to start with.


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