Setup TwinGig Converter to use GLC-SX GBIC in 4900

[brnhornt]

I am having problems configuring a 4900.  I have entered the following commands:

hw-module module 2 port-group 1 select gigabitethernet

hw-module module 2 port-group 2 select gigabitethernet

hw-module module 2 port-group 3 select gigabitethernet

hw-module module 2 port-group 4 select gigabitethernet

However no matter what I try, it never sees the GLC-SX gbics I have in the TwinGig converter.  Can anyone help?

PERSW001#sh interfaces status mod 2

Port      Name               Status       Vlan       Duplex  Speed Type

Te2/1                        inactive     1            full    10G No X2

Te2/2                        inactive     1            full    10G No X2

Te2/3                        inactive     1            full    10G No X2

Te2/4                        inactive     1            full    10G No X2

Te2/5                        inactive     1            full    10G No X2

Te2/6                        inactive     1            full    10G No X2

Te2/7                        inactive     1            full    10G No X2

Te2/8                        inactive     1            full    10G No X2

Gi2/9                        notconnect   1            full   1000 No Gbic

Gi2/10                       notconnect   1            full   1000 No Gbic

Gi2/11                       notconnect   1            full   1000 No Gbic

Gi2/12                       notconnect   1            full   1000 No Gbic

Gi2/13                       notconnect   1            full   1000 No Gbic

Gi2/14                       notconnect   1            full   1000 No Gbic

Gi2/15                       notconnect   1            full   1000 No Gbic

Gi2/16                       notconnect   1            full   1000 No Gbic

Gi2/17                       notconnect   1            full   1000 No Gbic

Gi2/18                       notconnect   1            full   1000 No Gbic

Gi2/19                       notconnect   1            full   1000 No Gbic

Gi2/20                       notconnect   1            full   1000 No Gbic

Gi2/21                       notconnect   1            full   1000 No Gbic

Gi2/22                       notconnect   1            full   1000 No Gbic

Gi2/23                       notconnect   1            full   1000 No Gbic

Gi2/24                       notconnect   1            full   1000 No Gbic

[Ivan Shirshin]

Hi,

Please send "show hw-mod mod 2 port", "show idprom int teng..." for all TenG interfaces, "show interfaces".

Also, which gig port is the GLC-SX-MM inserted into?

Kind Regards,
Ivan

[brnhornt]

Thanks for the reply Ivan.

PERSW001#sh hw-mod mod 2 port

Module Port-group Active                         Inactive

-------------------------------------------------------------

   2        1     Te2/1-2                        Gi2/9-12

   2        2     Te2/3-4                        Gi2/13-16

   2        3     Te2/5-6                        Gi2/17-20

   2        4     Te2/7-8                        Gi2/21-24

Here is what I have...4900 where the bottom row from left to right (full  width of switch) is (8) "TwinGig converter module CVR-X2-SFP V02"    Inside each of them will be (2) GLC-SX-MM for a total of 16 SX fiber  gigabit ethernet connections.

Above that is a module  that spans only half the width of the switch and it is full of (8)  10GigEthernet connections.  Those are going to be used for just  that...10Gig Ethernet.

I read an article about setting up the hw-modules...however I noticed that the article specified receiving the following error:"

%C4K_TRANSCEIVERMAN-3-SEEPROMREADFAILED: Failed to read transceiver serial eeprom on port Te2/1, try reinserting"

Which  I do when inserting one of the TwinGig converters...the difference is I  see it report the error on "Te1/1"  but, when I try to enter the  command hw-module module 1 port-group 1....my only options is "logging"

Does this help?

[Ivan Shirshin · Accepted solution]

Hi,

Is the issue with GLC-SX-MM only with Te1/x ports? If so, please note that the onboard TenGigabitEthernet interfaces does not support TwinGig adapters and only work on the expansion half cards.

Kind Regards,
Ivan

[Jonathancert_2]

Ivan is absolutely correct on the 4900M onboard 10G not supporting X2 interfaces.  Ran into this problem with my first experience with the 4900M.   I have six 4900M's and spent days trying to bet the TwinGigs to work until I read the data sheet.  You need the 4 or 8 port half cards.

Jonathan,

[brnhornt]

Thanks guys...that was it.  I moved the 10GigE tranceivers down to the first row, and then the (8) TwinGig converters up into the half card.  The hw-module command worked and the GBICs all came up.

Thanks so much for the quick response!

Kevin

[Ivan Shirshin]

welcome, Kevin! glad it all works properly now :-)

[MUHAMMAD AZAM AMEER]

hey

i have and issue connecting two routers with a 2960 switch which is connected to the internet switch?

can you give me an EXAMPLE OF ANY CONFIGURATION TO CONNECT THE ROUTERS, THE ROUTERS ARE 3945 ROUTERS PLEASE

Help

[Ivan Shirshin]

Hi Azam,

Could you give a part numbers for all devices and a topology diagram you want to create?

If, for example, you want to connect 2*3945 to 2960 which is connected to some internet gateway, you could create L3 dot1q interfaces on a routers:

     interface fastethernet 0/0.1 encapsulation dot1q 100
      ip address 192.168.100.1 255.255.255.0

The corresponding interfaces on 2960 would be dot1q trunk:

     interface fastethernet 1/0/1

      switchport trunk encapsulation dot1q
      switchport mode trunk

Now this tagged traffic has to somehow go to internet switch and be routed. That depends on the connectivity from 2960 to internet switch and that switch type/configuration. E.g. that can be done on an 2960 switch itself by

setting up IP routing there - create SVI interfaces with corresponding IP addresses:

http://www.cisco.com/en/US/docs/switches/lan/catalyst2960/software/release/12.2_55_se/configuration/guide/swipstatrout.html

Kind Regards,
Ivan

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