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IOS XRv9k rr - Only Mgt0 interface works! Gi0/x won't connect outside my blade!

mduperre
Level 1
Level 1

Simple setup, 2 UCS blades with both ubuntu 14.  One is running iosxrv 6.1.2 on qemu using the xml file that comes with it when you download it. I have 6 vnics per blade and created 6 bridges for the 3 Mgmt and 3 Data interfaces in the xml.

in ios, i get the following:

RP/0/RP0/CPU0:ios#show interfaces brief
Wed May 10 14:31:25.727 UTC

Intf Intf LineP Encap MTU BW
Name State State Type (byte) (Kbps)
--------------------------------------------------------------------------------
Nu0 up up Null 1500 0
Gi0/0/0/0 up up ARPA 1514 1000000
Gi0/0/0/1 up up ARPA 1514 1000000
Gi0/0/0/2 up up ARPA 1514 1000000
Mg0/RP0/CPU0/0 up up ARPA 1514 1000000

I've properly configured each of those with an ip, I can ping the bridge ip, but I cannot ping the other blade from within IOS. (I can ping it from ubuntu running the kvm though so so its not external network).  Its not the ip/vlan as If I setup Mgt interface with any of the ip used for Gi, it works!!

I even created a cirros vm in that same blade with all those same ip/bridge and i can go in/out to blade #2 without any problem. 

my ios config is quite simple. 

RP/0/RP0/CPU0:ios#show run
Wed May 10 14:33:24.410 UTC
Building configuration...
!! IOS XR Configuration version = 6.1.2
!! Last configuration change at Wed May 10 13:59:00 2017 by admin
!
username admin
group root-lr
group cisco-support
secret 5 $1$hT.D$w01nsi9Ah4JwCu6DDbr9x1
!
call-home
service active
contact smart-licensing
profile CiscoTAC-1
active
destination transport-method http
!
!
interface MgmtEth0/RP0/CPU0/0
ipv4 address 22.22.4.1 255.255.255.0
!
interface GigabitEthernet0/0/0/0
ipv4 address 22.22.1.1 255.255.255.0
!
interface GigabitEthernet0/0/0/1
ipv4 address 22.22.2.1 255.255.255.0
!
interface GigabitEthernet0/0/0/2
ipv4 address 22.22.3.1 255.255.255.0
!
end

bridge config:

ubuntu@smartnic3:~$ sudo brctl show
bridge name bridge id STP enabled interfaces
br1 8000.0025b500004e no cirros1
eth1
target1
target2
target3
br4 8000.0025b500000c no cirros2
eth4
target4
br5 8000.0025b500001c no cirros3
eth5
target5
br6 8000.fe466603d84e no cirros4
target6

1 Reply 1

mduperre
Level 1
Level 1

I found my problem. I'm using UCS B series, and the fabric interconnect was adding vlan tagging =0 to everything going through. while linux kernel did not mind, the xrv did not like it at all. I ended up turning vlan tagging instead of trunk to the whole network. also added this encapsulation dot1q 221 to my interfaces.