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Author Topic: View SMLT path for specific mac  (Read 1808 times)

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Offline evilmercer

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View SMLT path for specific mac
« on: May 29, 2014, 08:04:13 AM »
I am trying to find a way to view what mac addresses are traveling down each path of a SMLT to see if devices having connectivity issues are all on the same link. I am trying to find this on an 8606 running 4.1.5.4. Every output I have been able to find just identifies the mac to the SMLT and not the individual pathway.
Is there a way to view the mac address traversing each link?

Thanks for any help you can provide!


Offline FjRe

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Re: View SMLT path for specific mac
« Reply #1 on: June 05, 2014, 05:01:14 AM »
Hello evilmercer.

I guess you can configure ipfix and use 'show ip ipfix' commands to see the individual pathway.
May be ipfix will help you.
For example - the sho ip ipfix commands output from slot 1 of the ERS8606 (7.2.12.1) in lab environment:
R1:6# sho ip ipfix flows 1
*******************************************************************************
Command Execution Time: THU JUN 05 08:37:18 2014 UTC
*******************************************************************************

================================================================================
                                  IPFIX Flows
================================================================================
Slot Number : 1                             Total Number Of Flows : 3

Port/  SrcIP/DstIP     Src/   Protcol/  DSCP/           Egrss  Start/Last       
Vlan   Addr            Dst    Obsv      TcpFlag         Port/  Time             
                       Port   Point                     Mgid         
--------------------------------------------------------------------------------
1/1    192.168.10.60   1086   udp       0               null   JUN 05 08:37:02 
10     8.8.8.8         53     Port      none                   JUN 05 08:37:09 

1/1    192.168.10.60   0      icmp      0               cpp    JUN 05 08:35:29 
10     192.168.10.1    0      Port      none                   JUN 05 08:37:17 

1/1    192.168.10.60   1086   udp       0               null   JUN 05 08:37:01 
10     77.88.8.8       53     Port      none                   JUN 05 08:37:09 

Total number of Displayed Flows on Slot 1 : 3

--------------------------------------------------------------------------------
Port/  SrcMac/DstMac      Byte/Pkt

Vlan                      Count
--------------------------------------------------------------------------------
1/1    00:17:42:67:15:48          88
10     00:1f:9a:1f:32:00           1

1/1    00:17:42:67:15:48        9676
10     00:1f:9a:1f:32:00         118

1/1    00:17:42:67:15:48         176
10     00:1f:9a:1f:32:00           2

Total number of Displayed Flows on Slot 1 : 3

This is last release, but in my opinion, it will works the same in your release version.
Link for ipfix configuration guide - https://downloads.avaya.com/css/P8/documents/100100869
You can also use additional parameters in sho ip ipfix command such as src/dst ip, src/dst port, port, vlan and so on.

Offline Michael McNamara

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Re: View SMLT path for specific mac
« Reply #2 on: June 22, 2014, 10:32:31 AM »
There's a feature called 'Ping-Snoop' which is designed to reveal which path a specific IP data stream is taking.

http://blog.michaelfmcnamara.com/2007/12/ping-snoop/

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