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Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 20 Checking Status and Connectivity
Configuring Metro Ethernet Connectivity Fault Management
Scalability Data for Connectivity Fault Management and Alarm Indication Signal
•
On a Catalyst 6500 series switch with Supervisor Engine 720 that runs software release 8.7(3), when
CFM or CFM with MVRP are enabled together on dot1q trunk ports with a 10 second CC interval,
the switch supports the following:
–
The CCM traffic up to 2000 services or VLANs.
–
The Customer Edge (CE) switch supports 2000 customer level MIPs, and 2000 higher-level
flood traffic (traffic coming at the level higher than the maximum Maintenance level configured
on the switch).
–
The Provider Edge (PE) switch up to 200 upward MEPs.
Caution
An increase in number of MIPs, provider level MEPs or higher level flood traffic will increase the CPU
utilization, and might degrade performance of the system.
•
On a Catalyst 6500 series switch with Supervisor Engine 720 that runs software release 8.7(3), when
CFM or CFM with MVRP enabled together on the EtherChannel ports (4 ports in a bundle) and with
a 10 seconds CC interval, the switch supports the following:
–
The CCM traffic up to 1000 services or VLANs.
–
1000 customer level MIPs and 1000 higher-level flood traffic (traffic coming at the level higher
than the maximum Maintenance level configured on the switch).
–
200 Provider Level Up MEPs.
Caution
An increase in the number of ports to the EtherChannel or increase in the number of MIPs on a bundled
port, will increase the CPU utilization. This may result in CC lifetime expiry for the remote MEPs, and
trigger false indication of fault in the network.
•
On a Catalyst 6500 series switch with Supervisor Engine 720 that runs software release 8.7(3), when
CFM-AIS or CFM-AIS and MVRP are enabled together on dot1q trunk/EtherChannel ports with 10
second CC interval the switch supports the following:
–
In the event of link failure, the switch supports CCM traffic for up to 2000 services in the normal
state.
–
The switch supports 2000 customer level MIPs and 2000 higher-level flood traffic (traffic
coming at the level higher than the maximum Maintenance level configured.
–
Up to 200 Provider level Up MEPs.
Note
In the event of link failure, a CPU spike occurs at every one minute time interval because of the AIS
timer spread logic.
Caution
An increase in the number of MIPs, provider level MEPs or higher level flood traffic will increase the
CPU utilization and may degrade system performance.
