Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 510)

486 Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide
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Layer 2 control traffic behavior on VPLS endpoints
3
802.1x Protocol packets on a VPLS endpoint
802.1x does not support VPLS endpoints.
Cisco Discovery Protocol packets
Cisco Discovery Protocol (CDP) cannot be configured on a VPLS endpoint port and a VPLS endpoint
cannot be configured on a physical port that has CDP enabled. This restriction is enforced by the
CLI. When a VPLS endpoint receives any CDP traffic, this traffic is transparently flooded within the
VPLS.
The behavior of CDP control packets is as follows:
• When CDP is globally enabled on the device, and the priority force command is configured on
an incoming port, the VPLS local switched packets is sent out with a priority of seven (7).
• When CDP is not enabled on the device, packets are switched locally according to the priority
in the configured qos exp encode command or qos pcp encode-policy command.
Foundry Discovery Protocol packets
Foundry Discovery Protocol (FDP) cannot be configured on a VPLS endpoint port and a VPLS
endpoint cannot be configured on a physical port that has FDP enabled. This restriction is enforced
by the CLI. When a VPLS endpoint receives any FDP traffic, this traffic is transparently flooded
within the VPLS.
The behavior of FDP control packets is as follows:
• When FDP is globally enabled on the device and priority force command is configured on an
incoming port, the VPLS local switched packets is sent out with a priority of seven (7).
• When FDP is not enabled on the device, packets are switched locally according to the priority in
the configured qos exp encode command or qos pcp encode-policy command.
Configuring VPLS endpoint over FDP/CDP enabled interface
Configuring VPLS endpoint over an FDP/CDP enabled interface will implicitly disable FDP/CDP
configuration and also will be enable back implicitly when the VPLS endpoint is deleted on that
specific interface, considering FDP/CDP is enabled globally.
Info messages will be displayed to notify the user as below for these cases:
For example, when VPLS endpoint is created the info messages displayed are as below.
1 When only FDP is enabled globally.
Brocade(config-mpls-vpls-vpls1-vlan-100)#tag eth 4/3 eth 4/5 eth 4/7
info- FDP is disabled on port 4/3
info- FDP is disabled on port 4/5
info- FDP is disabled on port 4/7
2 When only CDP is enabled globally.
Brocade(config-mpls-vpls-vpls1-vlan-100)#tag eth 4/3 eth 4/5 eth 4/7
info- CDP is disabled on port 4/3
info- CDP is disabled on port 4/5
info- CDP is disabled on port 4/7