Cisco Systems OL-7396-01 Manual De Usuario

The following restrictions or limitations apply to MPLS on the Catalyst 8540, Catalyst 8510 and 
LightStream 1010:

MPLS is supported on the Enhanced Gigabit Ethernet, POS, Enhanced ATM router module (1483 
PVC), Fast Ethernet, and ATM interfaces 

Fast Ethernet and ATM interfaces must be linked to an Enhanced ATM router module 
interface by using the mpls-forwarding command to provide MPLS support. 

Traffic Engineering MPLS-QOS is not supported.

Multicast over MPLS is not supported.

Access-list based tag advertisements and filtering of MPLS packets based on access-lists are not 
supported.

Jumbo frames on MPLS interfaces is not supported.

Support for EBGP, RIP, OSPF between CE-PE and support for RIP, OSPF, and ISIS between PE-P. 
In the case of a TC-ATM link between PE-P, only OSPF and ISIS protocols are supported.

Support IBGP between PE.

Port-channel cannot be MPLS enabled.

Port-channel cannot be VRF enabled.

“Configuring Tag 
Switching”

http://www.cisco.com/univercd/cc/td/d
oc/product/atm/c8540/12_1/1hous_mt/
sw_conf/tag.htm

“Tag Switching”

http://www.cisco.com/univercd/cc/td/d
oc/product/l3sw/8540/12_1/lhouse/sw
_confg/8500tags.htm

“Troubleshooting Tag and 
MPLS Switching 
Connections”

See PDF Version for EFT 
documentation

“Multi protocol Label 
Switching Overview”

http://www.cisco.com/univercd/cc/td/d
oc/product/software/ios121/121cgcr/s
witch_c/xcprt4/xcdtagov.htm#xtocid48
0

“Configuring Multiprotocol 
Label Switching”

http://www.cisco.com/univercd/cc/td/d
oc/product/software/ios121/121cgcr/s
witch_c/xcprt4/xcdtagc.htm#xtocid26
4140

“Configuring Cisco Express 
Forwarding”

http://www.cisco.com/univercd/cc/td/d
oc/product/software/ios121/121cgcr/s
witch_c/xcprt2/xcdcefc.htm#46064