Getting a 25GB DAC cable to connect in a 10/25GB port

[Richard1982]

In a ASR 9002, I'm having trouble getting a 25GB DAC cable to come up in a 10/25GB port.  It's connected, no shut.  The cable shows in inventory but will not come up in any 10/25GB port.  I've test the cable from the distant end device into other devices and it works.  I'm wondering of there is a command to force the port to go to 25GB, similar to a speed-duplex command.   

RP/0/RP0/CPU0:ASR_A#show ver
Cisco IOS XR Software, Version 7.5.2

RP/0/RP0/CPU0:ASR_A#show inventory | i TenGigE0/0/0/41
NAME: "TenGigE0/0/0/41", DESCR: "25GBASE-CU SFP28 Cable 2 Meter"

interface TenGigE0/0/0/41
ipv4 address 172.25.2.177 255.255.255.254

RP/0/RP0/CPU0:ASR_A#show ip int brief | i TenGigE0/0/0/41
TenGigE0/0/0/41 172.25.2.177 Down Down default

[balaji.bandi]

The port you are using Tengig

if the port is twenty gig

it will be Twentygig port.

can you post show IP interface brief , and show modules

[Richard1982]

These ports can be either 10 or 25GB on an ASR9002.

RP/0/RP0/CPU0:ASR_A#show ip int brief

Interface IP-Address Status Protocol Vrf-Name
Loopback1 172.25.0.57 Up Up default
MgmtEth0/RP0/CPU0/0 172.25.130.154 Up Up default
MgmtEth0/RP1/CPU0/0 unassigned Shutdown Down default
TenGigE0/0/0/0 unassigned Shutdown Down default
TenGigE0/0/0/1 unassigned Shutdown Down default
TenGigE0/0/0/2 unassigned Shutdown Down default
TenGigE0/0/0/3 unassigned Shutdown Down default
TenGigE0/0/0/4 unassigned Shutdown Down default
TenGigE0/0/0/5 unassigned Shutdown Down default
TenGigE0/0/0/6 unassigned Shutdown Down default
TenGigE0/0/0/7 unassigned Shutdown Down default
HundredGigE0/0/0/10 unassigned Shutdown Down default
HundredGigE0/0/0/11 unassigned Shutdown Down default
TenGigE0/0/0/12 unassigned Shutdown Down default
TenGigE0/0/0/13 unassigned Shutdown Down default
TenGigE0/0/0/14 unassigned Shutdown Down default
TenGigE0/0/0/15 unassigned Shutdown Down default
TenGigE0/0/0/16 unassigned Shutdown Down default
TenGigE0/0/0/17 unassigned Shutdown Down default
TenGigE0/0/0/18 unassigned Shutdown Down default
TenGigE0/0/0/19 unassigned Shutdown Down default
TenGigE0/0/0/20 unassigned Shutdown Down default
TenGigE0/0/0/21 unassigned Shutdown Down default
TenGigE0/0/0/22 unassigned Shutdown Down default
TenGigE0/0/0/23 unassigned Shutdown Down default
TenGigE0/0/0/24 unassigned Shutdown Down default
TenGigE0/0/0/25 unassigned Shutdown Down default
TenGigE0/0/0/26 unassigned Shutdown Down default
TenGigE0/0/0/27 unassigned Shutdown Down default
TenGigE0/0/0/28 unassigned Shutdown Down default
TenGigE0/0/0/29 unassigned Shutdown Down default
TenGigE0/0/0/30 unassigned Shutdown Down default
TenGigE0/0/0/31 unassigned Shutdown Down default
TenGigE0/0/0/32 unassigned Shutdown Down default
TenGigE0/0/0/33 unassigned Shutdown Down default
TenGigE0/0/0/34 unassigned Shutdown Down default
TenGigE0/0/0/35 unassigned Shutdown Down default
HundredGigE0/0/0/36 unassigned Shutdown Down default
HundredGigE0/0/0/37 unassigned Shutdown Down default
TenGigE0/0/0/40 172.25.2.177 Down Down default
TenGigE0/0/0/41 unassigned Shutdown Down default
TenGigE0/0/0/42 unassigned Down Down default
TenGigE0/0/0/43 unassigned Shutdown Down default
TenGigE0/0/0/44 unassigned Shutdown Down default
TenGigE0/0/0/45 unassigned Shutdown Down default
TenGigE0/0/0/46 unassigned Shutdown Down default
TenGigE0/0/0/47 unassigned Shutdown Down default

Show module isn't a valid command in this IOS.  Here is a show inventory on the port thought (I moved it into port 40 from my original question it was in 41).

RP/0/RP0/CPU0:ASR_A#show inventory

NAME: "TenGigE0/0/0/40", DESCR: "25GBASE-CU SFP28 Cable 2 Meter"
PID: SFP-H25G-CU2M , VID: V01, SN: LCC2538G2U7

[balaji.bandi]

as per the information you have 10G, Look at the other post has an attachment how you can slice to use 25Gig

@smilstea thank you for sharing.

[smilstea · Accepted solution]

That optic doesn't show up as supported. I filtered by sfp28 and 9902.

https://tmgmatrix.cisco.com/?ff=42&npid=4625

Sam

[smilstea · Accepted solution]

I should amend my prior statement, I have seen the tmg matrix be wrong before. In any case you need to configure the ports to be 25ge or 10ge. I have attached some training slides on how to configure this, the command that shows the valid config values is show controller np valid-port-groups all.

Sam

[Richard1982]

I was able to get the ports to show as 25GB by configuring port groups.  The optics still won't connect, but I imagine that's because they aren't supported like you mentioned.  Thanks for your help!