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6522 Views 4 Replies Latest reply: Apr 15, 2011 1:44 AM by Michael Sato RSS

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"show protocols" command

Apr 14, 2011 1:41 AM

Michael Sato 5 posts since
Jul 22, 2008

I'm new at posting a discussion...but here goes...

 

While doing CCNP lab 2-2, EIGRP, I ran into a snag with the "show protocols" command.  according to the lab, it calls for me to issue the command to view the interfaces, their status, ip addresses, etc...

 

However, I get an incomplete command message.  Seems that can't just issue "show protocols" alone and I need to enter additional information (i.e. the type of interface).  So my first thought was that the lab manual had an error.

 

A google search on that command led me to a Cisco document (from their site) showing that the command does not need to include the optional interface type.

 

Does anyone know if this command changed within the IOS releases?

 

I am running 2811's with IOS 12.4(9)T7.

  • Paul Stewart  -  CCIE Security, CCSI 6,993 posts since
    Jul 18, 2008
    Currently Being Moderated
    1. Apr 14, 2011 2:45 AM (in response to Michael Sato)
    Re: "show protocols" command

    I very rarely use the "show protocols" command.  On my 12.4.15T12, it works with or without additional parameters.  The "show ip protocols" command is the one that I use regularly and will definitely work without additional parameters in all cases.

  • Keith Barker - CCIE RS/Security, CISSP 5,351 posts since
    Jul 3, 2009
    Currently Being Moderated
    2. Apr 14, 2011 7:04 AM (in response to Michael Sato)
    Re: "show protocols" command

    Hello Michael-

     

    The additional paramater (of interface) should be an optional command.  It is very likely an issue (bug/anomaly) with the specific IOS you are running.

     

    R2#show pro?

    processes  protocols 



    R2#show protocols

    Global values:

      Internet Protocol routing is enabled

    FastEthernet0/0 is up, line protocol is up

      Internet address is 10.0.0.2/24

    FastEthernet0/1 is up, line protocol is up

      Internet address is 23.0.0.2/24

    Loopback0 is up, line protocol is up

      Internet address is 2.2.2.2/24

    R2#

    R2#show ip protocols

    Routing Protocol is "ospf 1"

      Outgoing update filter list for all interfaces is not set

      Incoming update filter list for all interfaces is not set

      Router ID 2.2.2.2

      Number of areas in this router is 1. 1 normal 0 stub 0 nssa

      Maximum path: 4

      Routing for Networks:

        0.0.0.0 255.255.255.255 area 0

    Reference bandwidth unit is 100 mbps

      Routing Information Sources:

        Gateway         Distance      Last Update

        3.3.3.3              110      00:02:18

        1.1.1.1              110      00:00:29

      Distance: (default is 110)


    R2#

     

    This is from the command lookup tool (also attached):

     

    show protocols

    To display the configured protocols, use the show protocols command in user EXEC or privileged EXEC mode.

    show protocols [interface-name interface-number]

    Syntax Description

     


    interface-name

    (Optional) The type of interfaces. It can be one of the following values:

    ATM—ATM interface

    Async—Async interface

    Auto-Template—Auto-Template interface

    BVI—Bridge-Group Virtual Interface

    CDMA-Ix—CDMA Ix interface

    Container—Container interface

    CTunnel—CTunnel interface

    Dialer—Dialer interface

    Ethernet—Institute of Electrical Electronics Engineers (IEEE) 802.3

    FastEthernet—FastEthernet IEEE 802.3

    EsconPhy—ESCON interface

    fcpa—Fiber Channel

    Filter—Filter interface

    multiservice—Multiservice interface

    Pos-channel—POS Channel interfaces

    SBC—Session Border Controller

    SYSCLOCK—Telecom-Bus Clock Controller

    Tunnel—Tunnel interface

    Vif—PGM Multicast Host interface

    Virtual-Access—Virtual access interface

    Virtual-PPP—Virtual PPP interface

    Virtual-Template—Virtual template interface

    Virtual-TokenRing—Virtual TokenRing

    Vlan—Catalyst VLANs

    vmi—Virtual Multipoint Interface

    voaBypassIn—VOA-Bypass-In interface

    voaBypassOut—VOA-Bypass-Out interface

    voaFilterIn—VOA-Filter-In interface

    voaFilterOut—VOA-Filter-Out interface

    voaIn—VOA-In interface

    voaOut—VOA-Out interface

    interface-number

    (Optional) Interface number.

     

    Command Modes

    User EXEC (>)
    Privileged EXEC (#)

    Command History

                     

    Release

     

    Modification

    10.0

    This command was introduced.

    12.0(3)T

    The command was integrated in a release earlier than Cisco IOS Release 12.0(3)T.

    12.2(33)SRA

    This command was integrated into Cisco IOS Release 12.2(33)SRA.

    Cisco IOS XE Release 2.1

    This command was integrated into Cisco IOS XE Release 2.1.

     

    Usage Guidelines

    The show protocols command shows the global and interface-specific status of any configured Level 3 protocol.

    Examples

    The following is sample output from the show protocols command. The field names are self-explanatory.

    Router# show protocols

    Global values:

      Internet Protocol routing is enabled

    FastEthernet0/0 is up, line protocol is up

      Internet address is 10.4.9.14/24

    vmi1 is down, line protocol is down

    FastEthernet0/1 is up, line protocol is up

      Internet address is 10.4.8.14/24

    ATM2/0 is administratively down, line protocol is down

    ATM2/0.1 is administratively down, line protocol is down

    ATM2/0.2 is administratively down, line protocol is down

    ATM2/0.200 is administratively down, line protocol is down

    Ethernet3/0 is administratively down, line protocol is down

    Ethernet3/0.1 is administratively down, line protocol is down

    Ethernet3/1 is administratively down, line protocol is down

    Ethernet3/2 is administratively down, line protocol is down

    Ethernet3/3 is administratively down, line protocol is down

    ATM6/0 is administratively down, line protocol is down

    SSLVPN-VIF0 is up, line protocol is up

      Interface is unnumbered. Using address of SSLVPN-VIF0 (0.0.0.0)

    Virtual-Access1 is down, line protocol is down

    Virtual-Template1 is down, line protocol is down

    Virtual-Access2 is up, line protocol is up

    Port-channel5 is down, line protocol is down

    Port-channel5.1 is down, line protocol is down

    Port-channel15 is down, line protocol is down

    Virtual-Template100 is down, line protocol is down

      Interface is unnumbered. Using address of vmi1 (0.0.0.0)

    Dialer3 is up, line protocol is up

    For more information on the parameters or protocols shown in this sample output, see the Cisco IOS IP Addressing Services Configuration Guide and the Cisco IOS IP Routing Protocols Configuration Guide.

     

    I would just use alternate commands, and not worry too much about this single command.

     

    Best wishes,

     

    Keith

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