[c-nsp] ASR901 to ME3600X xconnect
Pshem Kowalczyk
pshem.k at gmail.com
Thu Feb 28 16:34:45 EST 2013
Hi,
I'm testing an asr901. We're looking at using for l2vpn termination.
For some reason the xconnect refuses to stand up between asr901 and
me3600x. Similar setup between two 3600x works fine.
Relevant config on the asr901:
!
hostname asr901A
!
boot system flash:/asr901-universalk9-mz.152-2.SNH1.bin
mpls label protocol ldp
mpls ldp discovery targeted-hello accept
mpls traffic-eng tunnels
bridge-domain 2
l2 router-id 10.123.129.3
!
interface Loopback0
ip address 10.123.129.3 255.255.255.255
!
interface Tunnel3000
ip unnumbered Loopback0
mpls ip
tunnel mode mpls traffic-eng
tunnel destination 10.123.129.1
tunnel mpls traffic-eng autoroute announce
tunnel mpls traffic-eng path-option 1 dynamic
tunnel mpls traffic-eng record-route
tunnel mpls traffic-eng fast-reroute
!
interface GigabitEthernet0/0
duplex full
no negotiation auto
service instance 1 ethernet
encapsulation dot1q 17
rewrite ingress tag pop 1 symmetric
xconnect 10.123.29.1 4321 encapsulation mpls
mtu 1500
!
!
interface Vlan2
mtu 9216
description to me3600x
ip address 10.123.29.6 255.255.255.252
ip router isis vc-core
mpls traffic-eng tunnels
clns mtu 9083
isis network point-to-point
isis metric 10
!
router isis vc-core
net 49.0001.0101.2312.9003.00
is-type level-2-only
ispf level-2
metric-style wide
set-overload-bit on-startup wait-for-bgp
spf-interval 5 50 200
prc-interval 5 50 200
lsp-gen-interval 5 50 200
log-adjacency-changes
passive-interface default
no passive-interface Vlan2
mpls traffic-eng router-id Loopback0
mpls traffic-eng level-2
on the ME3600X the xconnect looks like this:
interface GigabitEthernet0/11
description not in use
switchport trunk allowed vlan none
switchport mode trunk
mtu 9100
service-policy output PM-INT-1G-OUT
service instance 17 ethernet
encapsulation dot1q 4094
rewrite ingress tag pop 1 symmetric
xconnect 10.123.29.3 4321 encapsulation mpls
mtu 1500
I can see the ISIS and LDP up between asr901 and me3600x:
asr901A#sh mpls ldp neighbor
Peer LDP Ident: 10.123.129.1:0; Local LDP Ident 10.123.129.3:0
TCP connection: 10.123.129.1.646 - 10.123.129.3.26629
State: Oper; Msgs sent/rcvd: 1207/1201; Downstream
Up time: 17:22:15
LDP discovery sources:
Targeted Hello 10.123.129.3 -> 10.123.129.1, active, passive
Targeted Hello 10.123.129.3 -> 10.123.29.1, active
Addresses bound to peer LDP Ident:
10.123.129.1 10.123.29.5 10.123.29.1
asr901A#sh isis neighbors
Tag vc-core:
System Id Type Interface IP Address State Holdtime Circuit Id
accr01cgr L2 Vl2 10.123.29.5 UP 24 01
Yet the actual vc doesn't come up:
asr901A#sh mpls l2transport vc detail
Local interface: Gi0/0 up, line protocol up, Eth VLAN 17 up
Destination address: 10.123.29.1, VC ID: 4321, VC status: down
Last error: Local peer access circuit is down
Output interface: none, imposed label stack {}
Preferred path: not configured
Default path: no route
No adjacency
Create time: 00:17:34, last status change time: 00:13:54
Signaling protocol: LDP, peer 10.123.129.1:0 up
Targeted Hello: 10.123.129.3(LDP Id) -> 10.123.29.1, LDP is DOWN, no binding
Status TLV support (local/remote) : enabled/None (no remote binding)
LDP route watch : disabled
Label/status state machine : local ready, LruRnd
Last local dataplane status rcvd: No fault
Last BFD dataplane status rcvd: Not sent
Last BFD peer monitor status rcvd: No fault
Last local AC circuit status rcvd: No fault
Last local AC circuit status sent: Not sent
Last local LDP TLV status sent: No fault
Last remote LDP TLV status rcvd: None (no remote binding)
Last remote LDP ADJ status rcvd: None (no remote binding)
MPLS VC labels: local 16, remote unassigned
Group ID: local 0, remote unknown
MTU: local 1500, remote unknown
Remote interface description:
Sequencing: receive disabled, send disabled
Control Word: On (configured: autosense)
Dataplane:
SSM segment/switch IDs: 0/0 (used), PWID: 2
VC statistics:
transit packet totals: receive 0, send 0
transit byte totals: receive 0, send 0
transit packet drops: receive 0, seq error 0, send 0
The error 'Local peer access circuit is down' is all I get on the 901,
on the me3600x I get:
accr01cgr#sh mpls l2transport vc 4321 detail
Local interface: Gi0/11 up, line protocol up, Eth VLAN 4094 down
Destination address: 10.123.29.3, VC ID: 4321, VC status: down
Last error: Local peer access circuit is down
Output interface: none, imposed label stack {}
Preferred path: not configured
Default path: no route
No adjacency
Create time: 17:49:18, last status change time: 1w3d
Last label FSM state change time: 17:06:57
Signaling protocol: LDP, peer unknown
Targeted Hello: 10.123.129.1(LDP Id) -> 10.123.29.3, LDP is DOWN, no binding
Status TLV support (local/remote) : enabled/None (no remote binding)
LDP route watch : enabled
Label/status state machine : local standby, AC-ready, LnuRnd
Last local dataplane status rcvd: No fault
Last BFD dataplane status rcvd: Not sent
Last BFD peer monitor status rcvd: No fault
Last local AC circuit status rcvd: No fault
Last local AC circuit status sent: Not sent
Last local PW i/f circ status rcvd: No fault
Last local LDP TLV status sent: No status
Last remote LDP TLV status rcvd: None (no remote binding)
Last remote LDP ADJ status rcvd: None (no remote binding)
MPLS VC labels: local 21, remote unassigned
Group ID: local 0, remote unknown
MTU: local 1500, remote unknown
Remote interface description:
Sequencing: receive disabled, send disabled
Control Word: On (configured: autosense)
Dataplane:
SSM segment/switch IDs: 0/0 (used), PWID: 6
VC statistics:
transit packet totals: receive 0, send 0
transit byte totals: receive 0, send 0
transit packet drops: receive 0, seq error 0, send 0
Ethernet VLAN is down and the same error message 'Local peer access
circuit is down' shows up.
Debug on the ASR901 reveals the following:
*Mar 1 04:02:29.779: AToM[10.123.29.1, 4321]: Receive status update
*Mar 1 04:02:29.779: AToM[10.123.29.1, 4321]: . Receive AC
STATUS(DOWN AC(rx/tx faults))
*Mar 1 04:02:29.779: AToM[10.123.29.1, 4321]: .. AC status DOWN
AC(rx/tx faults)
*Mar 1 04:02:29.779: AToM[10.123.29.1, 4321]: ... Local peer access
circuit is down
*Mar 1 04:02:29.779: AToM[10.123.29.1, 4321]: .... S:Evt local down in LndRnd
*Mar 1 04:02:29.779: AToM[10.123.29.1, 4321]: ..... NMS: VC oper state: DOWN
*Mar 1 04:02:29.783: AToM[10.123.29.1, 4321]: ..... NMS: err
codes: loc-ac-rx-err
*Mar 1 04:02:29.783: AToM[10.123.29.1, 4321]: ..... NMS:
: + loc-ac-tx-err
*Mar 1 04:02:29.783: AToM[10.123.29.1, 4321]: ..... SYSLOG: VC is
DOWN, Loc AC Err
*Mar 1 04:02:29.783: AToM[10.123.29.1, 4321]: ... Local ready
*Mar 1 04:02:29.783: AToM[10.123.29.1, 4321]: ... Local service is
ready; send a label
I have no idea why I get those errors on the AC.
Any hints will be greatly appreciated.
kind regards
Pshem
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