[c-nsp] Help Cisco IOS XR 9001

[Ted Pelas Johansson]

Regarding isis, it looks like you have MTU mismatch since you configured 1600 byte on both platforms.

IOS/XE doesn't count the Ethernet header (1600) while XR/JunOS does (1614).

You also need to add the interface under `mpls ldp`.

Sent from my Phone

> On 23 Sep 2020, at 17:25, Olivier CALVANO <o.calvano at gmail.com> wrote:
> 
> Hello,
> 
> I am asking you for a little help, I just got an ASR9001 router and I am a
> little confused with the IOS XR completely different from my ASR1001.
> 
> 1- First problem, ISIS seems not to work
> 
> on my ASR1001X I have:
> interface TenGigabitEthernet7/1
> mtu 1600
> ip address 192.168.1.1 255.255.255.252
> ip router isis
> mpls label protocol ldp
> mpls ip
> 
> router isis
> net 49.0001.0000.0000.0450.00
> is-type level-2-only
> metric-style wide
> redistribute connected
> !
> address-family ipv6
>  multi-topology
>  redistribute connected
>  redistribute static
> exit-address-family
> 
> connected on this port, I have the ASR9001 with in conf:
> 
> interface TenGigE0/0/2/0
> mtu 1600
> ipv4 address 192.168.1.2 255.255.255.252
> 
> router isis WanCmp
> is-type level-2-only
> net 49.0001.0000.0000.0452.00
> address-family ipv6 unicast
> !
> interface TenGigE0/0/2/0
>  address-family ipv4 unicast
>  !
> !
> !
> 
> 
> but when i put sh isis topo
> Wed Sep 23 07:45:50.378 UTC
> 
> IS-IS phibee paths to IPv4 Unicast (Level-2) routers
> System Id       Metric  Next-Hop        Interface       SNPA
> ASR9001  --
> 
> Anyone have a idea of the problems ?
> 
> 
> 2- SSH/Telnet access to the router
> 
> currently I have to connect the ASR9001 router via the MgmtEth0 / RSP0 /
> CPU0 / 0 port to access it.
> 
> Unable to go through the wan classic TenGigE0 / 0/2/0 interface
> 
> in my configuration, i have:
> 
> telnet vrf default ipv4 server max-servers 10
> 
> line console
> exec-timeout 1440 0
> escape-character 0x5a
> session-limit 10
> disconnect-character 0x59
> session-timeout 100
> transport input telnet ssh
> transport output telnet ssh
> transport preferred none
> !
> line default
> exec-timeout 1440 0
> access-class ingress admin-nets
> transport input all
> transport output telnet ssh
> transport preferred none
> 
> vty-pool default 0 5 line-template default
> control-plane
> management-plane
>  out-of-band
>   interface TenGigE0/0/2/0
>    allow SSH peer
>     address ipv4 192.168.0.0/21
>    !
>    allow Telnet peer
>     address ipv4 192.168.0.0/21
>    !
> 
> 
> ssh server v2
> ssh server vrf default
> ssh server vrf Mgmt-intf
> end
> 
> 
> if i want connect on wan interface, i have all time a connexion refused
> 
> 
> 
> 
> 
> thanks for your help
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