Any Transport Over Mpls - Cisco WS-SUP32-GE-3B - Supervisor Engine 32 Software Configuration Manual

Chapter 21 Configuring Multiprotocol Label Switching
!
router bgp 100
no synchronization
bgp log-neighbor-changes
neighbor 10.3.3.3 remote-as 100
neighbor 10.3.3.3 description MP-BGP to PE1
neighbor 10.3.3.3 update-source Loopback0
no auto-summary
!
address-family vpnv4
neighbor 10.3.3.3 activate
neighbor 10.3.3.3 send-community extended
exit-address-family
!
address-family ipv4 vrf blues
redistribute connected
redistribute ospf 65000 match internal external 1 external 2
no auto-summary
no synchronization
exit-address-family
!

Any Transport over MPLS

Any Transport over MPLS (AToM) transports Layer 2 packets over an MPLS backbone. AToM uses a
directed Label Distribution Protocol (LDP) session between edge routers for setting up and maintaining
connections. Forwarding occurs through the use of two level labels that provide switching between the
edge routers. The external label (tunnel label) routes the packet over the MPLS backbone to the egress
PE at the ingress PE. The VC label is a demuxing label that determines the connection at the tunnel
endpoint (the particular egress interface on the egress PE as well as the VLAN identifier for an Ethernet
frame).
AToM supports the following like-to-like transport types:
•
•
•
•
Note
The PFC3B supports both hardware-based EoMPLS as well as OSM-, FlexWAN, or FlexWAN2-based
EoMPLS. For more information, see this URL:
http://www.cisco.com/en/US/docs/routers/7600/install_config/12.2SX_OSM_config/mpls.html
For information on requirements for Supervisor Engine 2-based EoMPLS, see this URL:
http://www.cisco.com/en/US/docs/routers/7600/install_config/12.2SX_OSM_config/mpls.html#Super
visor_Engine_2-Based_EoMPLS
For information on other AToM implementations (ATM AAL5 over MPLS, ATM Cell Relay over MPLS,
Frame Relay over MPLS), see this URL:
http://www.cisco.com/en/US/docs/routers/7600/install_config/12.2SX_OSM_config/mpls.html#Any_
Transport_over_MPLS
OL-11439-03
Ethernet over MPLS (EoMPLS) (VLAN mode and port mode)
Frame Relay over MPLS with DLCI-to-DLCI connections
ATM AAL5 over MPLS
ATM Cell Relay over MPLS
Additional AToM types are planned in future releases.
Catalyst Supervisor Engine 32 PISA Cisco IOS Software Configuration Guide, Release 12.2ZY
Any Transport over MPLS
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