Catalyst 6509 supervisor redundancy

When I do the sh ver on the 6509, i see 2 ports  ws-sup720-3b. How do I check to see if they backup each other. Thanks
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Don JohnstonInstructorCommented:
Can you explain your question?
I'm assuming that you are talking about the two Ethernet ports on the sup card.

They are regular Ethernet ports.  They can be configured in a Etherchannel if connected to the same switch.

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Phyo HTET AUNGNetwork Security AnalystCommented:
1) To verify redundant Supervisor Engine
#show module and #show redundancy, mode should be cold,warn or hot

2) not sure about ur first question. ws-sup720-3b means module model number.

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leblancAccountingAuthor Commented:
I meant how do I know if I have redundancy for my supervisor.
Don JohnstonInstructorCommented:
The command that describes the current redundancy status is "show redundancy".
leblancAccountingAuthor Commented:
it looks like I don't have a second supervisor to backup the first one because in the show module command, it does not display a second supervisor card. I am not sure how to read the display of the show redundancy.

sh redundancy
Redundant System Information :
       Available system uptime = 7 weeks, 6 days, 14 hours, 22 minutes
Switchovers system experienced = 0
              Standby failures = 0
        Last switchover reason = none
                 Hardware Mode = Simplex
    Configured Redundancy Mode = sso
     Operating Redundancy Mode = sso
              Maintenance Mode = Disabled
                Communications = Down      Reason: Simplex mode
Current Processor Information :
               Active Location = slot 5
        Current Software state = ACTIVE
       Uptime in current state = 7 weeks, 6 days, 14 hours, 21 minutes
                 Image Version = Cisco IOS Software, s72033_rp Software (s72033_rp-ADVIPSERVICESK9_WAN-M), Version 12.2(33)SXJ6, RELEASE SOFTWARE (fc3)
Technical Support:
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Fri 19-Jul-13 03:30 by prod_rel_team
                          BOOT =
                   CONFIG_FILE =
                       BOOTLDR =
        Configuration register = 0x2102
Peer (slot: unavailable) information is not available because it is in 'DISABLED' state
Don JohnstonInstructorCommented:
If you only have one supervisor, you have no redundancy.
I think the 2 ports you are talking about are the two Ethernet ports on the SUP card.  As I stated before, those are "normal" Ethernet port for network communications.

As donjohnston stated, to have redundancy for the sup card,  you need two sup cards.
leblancAccountingAuthor Commented:
yes. I just want to find out if I have 2 sups. But apparently, i misread the show command. it is actually 2 ports on that single sup.
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