Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 507)

Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide 483
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show mpls vpls detail
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VPLS CPU protection
The VPLS CPU protection feature protects the CPU of the line card from being overwhelmed by
excessive VPLS packets that would require the CPUs attention, including unknown unicast,
multicast packets, and packets requiring source-MAC learning. Once this feature is enabled, all
VPLS multicast traffic is hardware-flooded. Furthermore, when the CPU is too busy, this feature
hardware-floods unknown unicast traffic, as well as reduce the rate of source-MAC learning traffic
to the line card CPU, so that the line card CPU has enough resources to handle other types of
packets.
NOTE
VPLS CPU protection is not applicable to Brocade NetIron CES or Brocade NetIron CER devices.
Configuration Considerations
Note the following configuration rules before enabling VPLS CPU protection.
• VPLS CPU protection cannot be concurrently enabled with IGMP snooping on a VPLS instance.
Uptime The time in minutes that the entry has been operational.
Tnnl in use The tunnel LSP used to reach the VPLS peer.
When VPLS traffic to the peer is load balanced across multiple tunnel LSPs, the tunnel
LSPs used to reach the peer are displayed.
LDP session The state of the LDP session between this device and the VPLS peer.
Local VC lbl The VC label value locally allocated for this peer for this VPLS instance. Packets
forwarded from the VPLS peer to this device are expected to contain this label.
This is the label that is advertised to the VPLS peer through LDP.
Remote VC lbl The VC label allocated by the VPLS peer and advertised to this device through LDP.
The device applies this label to outbound MPLS packets sent to the VPLS peer.
Local VC MTU The MTU value locally configured for this peer.
Remote VC MTU The MTU value configured for the remote VPLS peer.
Local VC-Type The VC type for this peer.
Remote VC-Type The VC type for the remote VPLS peer.
CPU-Protection Whether CPU protection configured on this VPLS instance is ON or OFF.
On Brocade NetIron XMR and Brocade MLX series devices only: When CPU protection is
enabled on this VPLS instance but is temporarily unavailable due to 100% multicast FID
usage, this field includes the message shown above.
Local Switching Whether local switching behavior on a per-VPLS basis is enabled or disabled.
Extended Counter Indicates whether or not the extended counter is enabled for the configured VPLS.
Multicast Snooping Indicates whether the multicast snooping is enabled or disabled.
TABLE 73 Output from the show mpls vpls detail command (Continued)
Field Description