[j-nsp] Full routes on MX5

Eduardo Schoedler listas at esds.com.br
Tue Apr 26 15:53:24 EDT 2016


With only one full table:

user at acc> show chassis routing-engine
Routing Engine status:
    Temperature                 56 degrees C / 132 degrees F
    CPU temperature             73 degrees C / 163 degrees F
    DRAM                      2048 MB (2048 MB installed)
    Memory utilization          87 percent
    CPU utilization:
      User                      13 percent
      Background                 0 percent
      Kernel                    10 percent
      Interrupt                  1 percent
      Idle                      76 percent
    Model                          RE-MX5-T
    Uptime                         87 days, 15 hours, 44 minutes, 40 seconds
    Last reboot reason             could not be determined
    Load averages:                 1 minute   5 minute  15 minute
                                       0.17       0.10       0.09

user at acc> show route summary
Autonomous system number: x
Router ID: x.x.x.x

inet.0: 584634 destinations, 584674 routes (584630 active, 9 holddown, 1 hidden)
              Direct:     22 routes,     22 active
               Local:     21 routes,     21 active
                OSPF:    200 routes,    199 active
                 BGP: 584386 routes, 584364 active
              Static:     45 routes,     24 active

x.inet.0: 6 destinations, 6 routes (6 active, 0 holddown, 0 hidden)
              Direct:      1 routes,      1 active
               Local:      1 routes,      1 active
              Static:      4 routes,      4 active

y.inet.0: 33 destinations, 33 routes (33 active, 0 holddown, 0 hidden)
              Direct:      1 routes,      1 active
               Local:      1 routes,      1 active
              Static:     31 routes,     31 active

inet6.0: 28900 destinations, 28912 routes (28900 active, 0 holddown, 0 hidden)
              Direct:     24 routes,     14 active
               Local:     22 routes,     22 active
               OSPF3:      9 routes,      9 active
                 BGP:  28847 routes,  28846 active
              Static:     10 routes,      9 active

user at acc> show system processes extensive no-forwarding
last pid: 43314;  load averages:  0.25,  0.17,  0.11  up 87+15:53:08    16:51:13
145 processes: 6 running, 112 sleeping, 27 waiting

Mem: 1293M Active, 96M Inact, 330M Wired, 241M Cache, 112M Buf, 23M Free
Swap: 2821M Total, 2821M Free


--
Eduardo Schoedler

2016-04-26 16:44 GMT-03:00 Saku Ytti <saku at ytti.fi>:
> You have about 100 days before you'll run out of DRAM, likely less.
>
>
> Anyone tried swapping 2GB to 4GB on MX80 control-plane? Obviously not
> gonna be supported, but curious if it works.
>
> On 26 April 2016 at 12:26, Eduardo Schoedler <listas at esds.com.br> wrote:
>> Hi Colton,
>>
>> Yes, it's very high.... but it's working ok :)
>> 3 full tables (~580k each) + 4x IXP route-server (~60k each) + 1
>> peering with HE (81k).
>>
>> Indeed, convergence it's terrible... for my luck, these sessions are
>> pretty stable.
>>
>> --
>> Eduardo Schoedler
>>
>>
>> 2016-04-26 15:46 GMT-03:00 Colton Conor <colton.conor at gmail.com>:
>>> Eduardo,
>>>
>>> So if I am reading that right, the box is using 96 percent of its memory? It
>>> looks like it has 2 Million routes, so is that 4 full BGP tables/upstream
>>> providers?
>>>
>>> On Tue, Apr 26, 2016 at 1:17 PM, Eduardo Schoedler <listas at esds.com.br>
>>> wrote:
>>>>
>>>> 2016-04-26 13:15 GMT-03:00 Javier Rodriguez <rodriguezsotelo at gmail.com>:
>>>> > Hi,
>>>> >
>>>> > How much memory is left available with one full table on a MX80?
>>>> > I have a problem with routes at the process installation into the FIB
>>>> > (KRT)
>>>> > and they remain pending for a long time. Do you know if this issue is
>>>> > related to memory? How can i solve it?.
>>>>
>>>> Hi Javier,
>>>>
>>>> This router is a MX80.
>>>> They also have an running logical-instance:
>>>>
>>>> login at rtr> show chassis routing-engine
>>>> Routing Engine status:
>>>>     Temperature                 45 degrees C / 113 degrees F
>>>>     CPU temperature             54 degrees C / 129 degrees F
>>>>     DRAM                      2048 MB (2048 MB installed)
>>>>     Memory utilization          96 percent
>>>>     CPU utilization:
>>>>       User                       5 percent
>>>>       Background                 0 percent
>>>>       Kernel                    10 percent
>>>>       Interrupt                  3 percent
>>>>       Idle                      82 percent
>>>>     Model                          RE-MX5-T
>>>>     Load averages:                 1 minute   5 minute  15 minute
>>>>                                        0.19       0.17       0.16
>>>>
>>>> login at rtr> show route summary
>>>> Autonomous system number: xxxxx
>>>> Router ID: x.x.x.x
>>>>
>>>> inet.0: 599618 destinations, 2057043 routes (591234 active, 16
>>>> holddown, 133589 hidden)
>>>>               Direct:     18 routes,     18 active
>>>>                Local:     17 routes,     17 active
>>>>                 OSPF:     39 routes,     37 active
>>>>                  BGP: 2056944 routes, 591145 active
>>>>               Static:     25 routes,     17 active
>>>>
>>>> inet6.0: 29364 destinations, 130976 routes (29363 active, 0 holddown,
>>>> 290 hidden)
>>>>               Direct:     20 routes,     13 active
>>>>                Local:     18 routes,     18 active
>>>>                OSPF3:     20 routes,     20 active
>>>>                  BGP: 130916 routes,  29311 active
>>>>               Static:      2 routes,      1 active
>>>>
>>>> login at rtr:LS-GIGA> show route summary
>>>> Autonomous system number: yyyyy
>>>> Router ID: y.y.y.y
>>>>
>>>> inet.0: 110496 destinations, 195742 routes (110496 active, 13
>>>> holddown, 0 hidden)
>>>> Restart Complete
>>>>               Direct:      3 routes,      3 active
>>>>                Local:      2 routes,      2 active
>>>>                 OSPF:    208 routes,    208 active
>>>>                  BGP: 195529 routes, 110283 active
>>>>
>>>>
>>>> --
>>>> Eduardo Schoedler


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