RB4011-1 sfp-sfpplus1 <-> sfp-sfpplus3 CRS-SW1 sfp-sfpplus1 <-> sfp-sfpplus1 CRS-SW2
With ROS version = 6.48.5 on 4011 and CRS-SW1 and v7.1rc6 on CRS-SW2 (l3hw disabled)
RB4011 and CRS-SW2 configured as MPLS PE and CRS-SW1 as MPLS P.
I try to connect via ebgp or ibgp peer(is not important at the moment) the 4011 and CRS-SW2 via their loopback address, but the peers never establish.
I check with a simple ping with commands:
Code: Select all
[admin@4011-1] /ping src-address=10.0.1.3 10.0.1.1
[admin@CRS309-SW2] /ping src-address=10.0.1.1 10.0.1.3
but i have no reply from and to both endpoints.
Following i sniff packets on the interlink interface between all devices with test ping running and i found two different behaviors.
With ping run from 10.0.1.3 to 10.0.1.1 4011-> CRS-SW2, i can capture the packet in every interface on path with correct mpls label based on forwarding table of egress router
but i can not capture any reply from CRS-SW2, it appears to be reject packets or do not send replies
With ping run from opposite direction CRS-SW2 -> 4011, i can capture the packets and the replies on entire path again with correct mpls label, but CRS-SW2 print timeout,.
I attach the conf of all device and the MPLS Forwarding table .
Thanks a lot in advance.
Code: Select all
[admin@4011-1] /mpls forwarding-table> print
0 expl-null
1 L 106 expl-null 10.0.1.0/32 sfp-sfpplus1 10.255.255.5
2 L 109
74 10.0.1.1/32 sfp-sfpplus1 10.255.255.5
# CONFIGURATION
/interface bridge
add comment=LOOPBACK name=loopback protocol-mode=none
/interface ethernet
set [ find default-name=sfp-sfpplus1 ] l2mtu=1584
/routing bgp instance
set default as=4200000000 router-id=10.0.1.3
/routing ospf instance
set [ find default=yes ] router-id=10.0.1.3
/ip address
add address=192.168.88.11/24 comment=MANAGEMENT interface=ether10 network=192.168.88.0
add address=10.0.1.3 comment=LOOPBACK interface=loopback network=10.0.1.3
add address=10.255.255.6/30 comment="to: CRS-SW1" interface=sfp-sfpplus1 network=10.255.255.4
/mpls
set propagate-ttl=no
/mpls interface
set [ find default=yes ] mpls-mtu=1580
/mpls ldp
set enabled=yes lsr-id=10.0.1.3 transport-address=10.0.1.3 use-explicit-null=yes
/mpls ldp advertise-filter
add prefix=10.0.1.0/24
add advertise=no
/mpls ldp interface
add interface=sfp-sfpplus1
/routing bgp peer
add multihop=yes name=TO-CRS-2 remote-address=10.0.1.1 remote-as=4210000100 update-source=10.0.1.3
/routing ospf interface
add interface=loopback passive=yes
add interface=sfp-sfpplus1 network-type=point-to-point
/routing ospf network
add area=backbone comment=LOOPBACK network=10.0.1.0/24
add area=backbone comment=P2P network=10.255.255.0/24
##############################################
[admin@CRS309-SW1] /mpls forwarding-table> print
0 expl-null
1 L 73 expl-null 10.0.1.3/32 sfp-sfpplus3 10.255.255.6
2 L 74 expl-null 10.0.1.1/32 sfp-sfpplus1 10.255.255.2
# CONF
/interface bridge
add name=loopback protocol-mode=none
/routing ospf instance
set [ find default=yes ] router-id=10.0.1.0
/ip address
add address=192.168.88.10/24 comment=MANAGEMENT interface=ether1 network=192.168.88.0
add address=10.0.1.0 comment=LOOPBACK interface=loopback network=10.0.1.0
add address=10.255.255.1/30 comment="to: CRS-SW2" interface=sfp-sfpplus1 network=10.255.255.0
add address=10.255.255.5/30 comment="to: 4011-1" interface=sfp-sfpplus3 network=10.255.255.4
/mpls
set propagate-ttl=no
/mpls interface
set [ find default=yes ] mpls-mtu=1580
/mpls ldp
set enabled=yes lsr-id=10.0.1.0 transport-address=10.0.1.0 use-explicit-null=yes
/mpls ldp advertise-filter
add prefix=10.0.1.0/24
add advertise=no
/mpls ldp interface
add interface=sfp-sfpplus1
add interface=sfp-sfpplus3
/routing ospf interface
add interface=loopback passive=yes
add interface=sfp-sfpplus1 network-type=point-to-point
add interface=sfp-sfpplus3 network-type=point-to-point
/routing ospf network
add area=backbone comment=LOOPBACK network=10.0.1.0/24
add area=backbone comment=P2P network=10.255.255.0/24
############################################
[admin@CRS309-SW2] /mpls/forwarding-table> print
0 L 16 main 10.0.1.0 { label=expl-null; nh=10.255.255.1; interface=sfp-sfpplus1 }
1 L 17 main 10.0.1.3 { label=73; nh=10.255.255.1; interface=sfp-sfpplus1 }
# CONF
/interface bridge
add name=loopback protocol-mode=none
/routing bgp template
set default as=4210000100 disabled=no name=default output.network=bgp-networks
/routing ospf instance
add name=default-v2 router-id=10.0.1.1
/routing ospf area
add instance=default-v2 name=backbone-v2
/routing table
add fib name=""
/ipv6 settings
set disable-ipv6=yes
/ip address
add address=192.168.88.12/24 comment=MANAGEMENT interface=ether1 network=192.168.88.0
add address=10.0.1.1 comment=LOOPBACK interface=loopback network=10.0.1.1
add address=10.255.255.2/30 comment="to: CRS-SW1" interface=sfp-sfpplus1 network=10.255.255.0
/mpls interface
add interface=all mpls-mtu=1580
/mpls ldp
add disabled=no lsr-id=10.0.1.1 transport-addresses=10.0.1.1 use-explicit-null=yes
/mpls ldp advertise-filter
add advertise=yes prefix=10.0.1.0/24
add advertise=no prefix=0.0.0.0/0
/mpls ldp interface
add accept-dynamic-neighbors=yes disabled=no interface=sfp-sfpplus1
/routing bgp connection
add disabled=no local.address=10.0.1.1 .role=ebgp multihop=yes name=TO-4011-1 remote.address=10.0.1.3 .as=4200000000 templates=default
/routing ospf interface-template
add area=backbone-v2 comment=LOOPBACK networks=10.0.1.0/24 passive
add area=backbone-v2 comment=P2P networks=10.255.255.0/24 type=ptp
/system identity
set name=CRS-SW2
