[j-nsp] mc-lag standby peer not ageing out MAC addresses

Luca Salvatore luca at digitalocean.com
Wed Mar 18 13:34:51 EDT 2015 

here it all is.
You'll just have to trust me that the ping works between peers using the
ICCP IP.
We use public addressing on these and I don't want to post the public IPs
here.  I've changed them to 10.1.1.1 and 10.1.1.2 in the output.  I'm able
to ping without issue.

Some details
ae0 is the iccp / icl link
ae10 is a random mc-lag interface

We have been running this config in prod in numerous sites for a while.
This particular set of switches has a difference of about 80,000 mac
addresses between each core.

core1> show interfaces mc-ae id 10
 Member Link                  : ae10
 Current State Machine's State: mcae active state
 Local Status                 : active
 Local State                  : up
 Peer Status                  : active
 Peer State                   : up
     Logical Interface        : ae10.0
     Topology Type            : bridge
     Local State              : up
     Peer State               : up
     Peer Ip/MCP/State        : 10.1.1.2 ae0.0 up

core1> show configuration interfaces ae0 | display set
set interfaces ae0 mtu 1522
set interfaces ae0 aggregated-ether-options link-speed 10g
set interfaces ae0 aggregated-ether-options lacp active
set interfaces ae0 aggregated-ether-options lacp periodic fast
set interfaces ae0 unit 0 family ethernet-switching interface-mode trunk
set interfaces ae0 unit 0 family ethernet-switching vlan members 1010-1050

core1> show configuration interfaces ae10 | display set
set interfaces ae10 mtu 1522
set interfaces ae10 aggregated-ether-options link-speed 10g
set interfaces ae10 aggregated-ether-options lacp active
set interfaces ae10 aggregated-ether-options lacp periodic fast
set interfaces ae10 aggregated-ether-options lacp system-id
00:00:00:00:00:10
set interfaces ae10 aggregated-ether-options lacp admin-key 8888
set interfaces ae10 aggregated-ether-options mc-ae mc-ae-id 10
set interfaces ae10 aggregated-ether-options mc-ae redundancy-group 3
set interfaces ae10 aggregated-ether-options mc-ae chassis-id 0
set interfaces ae10 aggregated-ether-options mc-ae mode active-active
set interfaces ae10 aggregated-ether-options mc-ae status-control active
set interfaces ae10 aggregated-ether-options mc-ae events iccp-peer-down
prefer-status-control-active
set interfaces ae10 unit 0 family ethernet-switching interface-mode trunk
set interfaces ae10 unit 0 family ethernet-switching vlan members 1010-1050


core1> show configuration protocols iccp | display set
set protocols iccp local-ip-addr 10.1.1.1
set protocols iccp peer 10.1.1.2 redundancy-group-id-list 3
set protocols iccp peer 10.1.1.2 liveness-detection minimum-interval 500
set protocols iccp peer 10.1.1.2 liveness-detection
minimum-receive-interval 500
set protocols iccp peer 10.1.1.2 liveness-detection multiplier 2
set protocols iccp peer 10.1.1.2 liveness-detection transmit-interval
minimum-interval 1000
set protocols iccp peer 10.1.1.2 liveness-detection detection-time
threshold 2000


core2> show interfaces mc-ae id 10
 Member Link                  : ae10
 Current State Machine's State: mcae active state
 Local Status                 : active
 Local State                  : up
 Peer Status                  : active
 Peer State                   : up
     Logical Interface        : ae10.0
     Topology Type            : bridge
     Local State              : up
     Peer State               : up
     Peer Ip/MCP/State        : 10.1.1.1 ae0.0 up


core2> show configuration interfaces ae0 | display set
set interfaces ae0 mtu 1522
set interfaces ae0 aggregated-ether-options link-speed 10g
set interfaces ae0 aggregated-ether-options lacp active
set interfaces ae0 aggregated-ether-options lacp periodic fast
set interfaces ae0 unit 0 family ethernet-switching interface-mode trunk
set interfaces ae0 unit 0 family ethernet-switching vlan members 1010-1050

core2> show configuration interfaces ae10 | display set
set interfaces ae10 mtu 1522
set interfaces ae10 aggregated-ether-options link-speed 10g
set interfaces ae10 aggregated-ether-options lacp active
set interfaces ae10 aggregated-ether-options lacp periodic fast
set interfaces ae10 aggregated-ether-options lacp system-id
00:00:00:00:00:10
set interfaces ae10 aggregated-ether-options lacp admin-key 8888
set interfaces ae10 aggregated-ether-options mc-ae mc-ae-id 10
set interfaces ae10 aggregated-ether-options mc-ae redundancy-group 3
set interfaces ae10 aggregated-ether-options mc-ae chassis-id 1
set interfaces ae10 aggregated-ether-options mc-ae mode active-active
set interfaces ae10 aggregated-ether-options mc-ae status-control standby
set interfaces ae10 aggregated-ether-options mc-ae events iccp-peer-down
prefer-status-control-active
set interfaces ae10 unit 0 family ethernet-switching interface-mode trunk
set interfaces ae10 unit 0 family ethernet-switching vlan members 1010-1050

set protocols iccp local-ip-addr 10.1.1.2
set protocols iccp peer 10.1.1.1 redundancy-group-id-list 3
set protocols iccp peer 10.1.1.1 liveness-detection minimum-interval 500
set protocols iccp peer 10.1.1.1 liveness-detection
minimum-receive-interval 500
set protocols iccp peer 10.1.1.1 liveness-detection multiplier 2
set protocols iccp peer 10.1.1.1 liveness-detection transmit-interval
minimum-interval 1000
set protocols iccp peer 10.1.1.1 liveness-detection detection-time
threshold 2000

On Wed, Mar 18, 2015 at 12:13 PM, Syed Iftikhar Ahmed <iahmed at emw-me.com>
wrote:

>  Sh interface mc-ae id xx
> Iccp link configuration.
> Ping output between chassis using iccp ips
> And any one mc-lag interface config from both chassis
>
> Sent from my iPhone
>
> On Mar 18, 2015, at 7:50 PM, Luca Salvatore <luca at digitalocean.com> wrote:
>
>   Hi,
>
>  Yes VRRP is in use.  Running 13.2R5.10, single RE.
> Running active-active
>
>  What config do you want to see?  I don't want to post the whole thing.
>
>
>
>
>
>
> On Tue, Mar 17, 2015 at 7:09 PM, Syed Iftikhar Ahmed <iahmed at emw-me.com>
> wrote:
>
>> Is it active/ active or active/ standby setup. Config for 9200 is
>> different than the One mentioned jn Kb, are you using vrrp as well?
>> Please post your config, junos version.
>>
>> Do you have two RE in chassis or one?
>>
>> Sent from my iPhone
>>
>> > On Mar 18, 2015, at 12:39 AM, Luca Salvatore <luca at digitalocean.com>
>> wrote:
>> >
>> > Hi,
>> >
>> > Anyone seen an issue where the standby mc-lag peer does not age out MACs
>> > that it has learned from the active peer?
>> >
>> > i'm seeing a huge difference in the mac address count on two ex9208
>> mc-lag
>> > peers.  By huge I mean about 75,000 difference.
>> >
>> > some basic testing shows that when a mac address is aged out of the
>> active
>> > peer, the standby one just keeps it forever.
>> >
>> > Thanks
>> > Luca.
>>  > _______________________________________________
>> > juniper-nsp mailing list juniper-nsp at puck.nether.net
>> > https://puck.nether.net/mailman/listinfo/juniper-nsp
>>
>
>
>
>  --
>     Luca Salvatore
> Network Engineer
> Cell: +1 (929) 214-7242
> Desk: +1 (347) 305-4030
>
>


-- 
Luca Salvatore
Network Engineer
Cell: +1 (929) 214-7242
Desk: +1 (347) 305-4030

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