Instruction manual

Known Limitations in Release 4.1
296-1011-220 Rel. 4.1, Doc. Rev. 07.02 4-3
Known Problems and Limitations
Known Limitations in Release 4.1
The following are descriptions of the known limitations of the CVX Multi-Service
Access Switch.
Open Shortest Path First (OSPF)
Limitations on Configurations
The following are known OSPF limitations for the CVX switch:
• There is a limit of 15 on the maximum number of adjacencies reliably
supported.
• The link state database can be no greater that 300 link state advertisements
(LSAs).
Note: CVX switch operating as an autonomous system boundary router
(ASBR) within a not-so-stubby area (NSSA).
Note: IP Pools within the CVX switch are flooded through the OSPF area as
type 2 external routes. The CVX switch must be configured as an ASBR in
order to propagate the IP pools. To reduce the number of LSA’s generated by a
CVX switch, all IP pools configured on that switch should consist of a subnet
address and a mask rather than a starting address and a count. In addition, the
route_advertise parameter in the CVX switch configuration under sessions/
vpop #/vpop_config must be set to advertise_routes. This ensures that IP pool
addresses are summarized into one LSA per pool rather that one LSA per
individual host address.