C6880-X local span session limit

[Difan Zhao]

What is the SPAN session limit on the C6880-X? I have two running in VSS. I googled and I saw that the limit is 2 if it is SUP2 supervisor. How do I know what supervisor module that I am using? "show inventory" says "C6880-X-SUP"

Also in the document about the SUP2 limit, it says "Local SPAN Egress-Only" limit is 14. What is Egress-only session? Does it just mean the SPAN source is "interface te1/1 tx"? Thanks

[balaji.bandi]

that means you need to enter local only

Enter the local-tx keyword to configure egress-only SPAN sessions.

below reference :

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/15-1SY/config_guide/sup2T/15_1_sy_swcg_2T/span_rspan_erspan.html

https://www.cisco.com/en/US/docs/general/Test/dwerblo/broken_guide/span.html#wp1037433

[Difan Zhao]

Thanks Balaji. On my 6880 I don't have the option available. Actually, the config syntax is different. It looks like Nexus switch configuration. Can I assume that I am not using SUP2 in my switch?

Thanks for the links however I still don't know what local-tx is. Is it related to SPAN on FEX? Does "local" mean that the source and destination interface have to be on the same FEX? 

[balaji.bandi]

Can you post show version - C68XX is not nexus.

to know the modules, show modules post the output here.

68XX do support have FEX - but we need to know your environment to suggest better here.

[Difan Zhao]

I am mentioning SUP2 because in this document it says it is for Cat 6500 however the config seems to be for Nexus switch.

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/15-1SY/config_guide/sup2T/15_1_sy_swcg_2T/span_rspan_erspan.html

Here are my show version and show module output

wsw01#sh version
Cisco IOS Software, c6880x Software (c6880x-ADVENTERPRISEK9-M), Version 15.1(2)SY4, RELEASE SOFTWARE (fc5)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2014 by Cisco Systems, Inc.
Compiled Wed 05-Nov-14 16:37 by prod_rel_team

ROM: System Bootstrap, Version 15.1(02)SY01 [ Rel 1.1], RELEASE SOFTWARE
BOOTLDR:
wsw01-00rm255r2r1 uptime is 4 years, 13 weeks, 3 days, 22 hours, 49 minutes
Uptime for this control processor is 4 years, 13 weeks, 3 days, 22 hours, 50 minutes
System returned to ROM by reload at 20:40:31 UTC Tue Dec 23 2014
System restarted at 16:21:15 EST Tue Dec 23 2014
System image file is "bootdisk:c6880x-adventerprisek9-mz.SPA.151-2.SY4.bin"
Last reload reason: Reload Command



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Cisco C6880-X ( Intel(R) Core(TM) i3- CPU @ 2.00GHz ) processor (revision ) with 3144704K/262144K bytes of memory.
Processor board ID SAL1749HGXQ
Processor signature 0xA7060200
Last reset from s/w reset
16 Virtual Ethernet interfaces
1 Gigabit Ethernet interface
64 Ten Gigabit Ethernet interfaces
1966064K bytes of USB Flash bootdisk (Read/Write)

Configuration register is 0x2102



wsw01# show module
Mod Ports Card Type Model Serial No.
--- ----- -------------------------------------- ------------------ -----------
1 20 DCEF-X 16P SFP+ Multi-Rate C6880-X-16P10G SAL1819SBPE
5 20 6880-X 16P SFP+ Multi-Rate (Active) C6880-X-SUP SAL1749HEXJ

Mod MAC addresses Hw Fw Sw Status
--- ---------------------------------- ------ ------------ ------------ -------
1 6c41.6a49.461f to 6c41.6a49.4632 2.0 15.1(50r)SYL 15.1(2)SY4 Ok
5 c08c.60d7.9e4c to c08c.60d7.9e64 1.1 15.1(02)SY01 15.1(2)SY4 Ok

Mod Sub-Module Model Serial Hw Status
---- --------------------------- ------------------ ----------- ------- -------
1 Distributed Forwarding Card C6880-X-DFC SAL1819SBRR 1.0 Ok
5 Policy Feature Card 4 C6880-X-PFC SAL1749HEWS 1.2 Ok

Mod Online Diag Status
---- -------------------
1 Pass
5 Pass

Could you still elaborate more on local-tx? Thanks!