IOS XR and IOS XE routers won't exchange ISIS routes

[Venison Mogambi]

I'm doing a simple ISIS lab with a directly connected IOS XE router and an IOS XR router. They form an ISIS neighborship without any issues, but they won't exchange ISIS routes. Anyone have any ideas?

Here are the relevant configs:

XE router:

router isis 1
net 00.0000.0000.0003.00
is-type level-2-only
metric-style narrow
passive-interface Loopback0

!

interface GigabitEthernet1.313
encapsulation dot1Q 313
ip address 10.3.13.3 255.255.255.0
ip router isis 1

XR router:

router isis 1
is-type level-2-only
net 00.0000.0000.0013.00
address-family ipv4 unicast
metric-style wide
!
interface Loopback0
passive
address-family ipv4 unicast
!
interface GigabitEthernet0/0/0/0.313
address-family ipv4 unicast

As I said, they form an ISIS neighborship without any issues, but I don't see any ISIS routes in either router's route table. I'm trying to advertise their loopbacks to each other.

Note that I've added tried another XE and XR router to the topology and the XE routers will learn each others' ISIS routes and add them to the route table, just as the XR routers will learn each others' routes and add them to their route tables. So my issue seems to be specifically with the XE-XR routers exchanging routes.

[Georg Pauwen · Accepted solution]

Hello,

configure both routers with the same metric style, e.g.:

metric-style wide level 2

[Venison Mogambi]

That was it, thanks so much!

I don't have a lot of experience with ISIS and I was overlooking that, I figured it was something simple.