The peer sa-cache-maximum command limits the maximum number of (S, G) entries that are learnt from an MSDP peer and cached by the current FW.
The undo peer sa-cache-maximum command restores the default configuration.
| Parameter | Description | Value |
|---|---|---|
| peer-address | Specifies the address of an MSDP peer. | The address is in dotted decimal notation. |
| sa-limit | specifies the maximum number of (S, G) entries that are allowed to cache. | The number is an integer that ranges from 1 to 4294967295. |
By default, the number of (S, G) entries in the Source Active (SA) cache is 8192.
Use the command to configure all MSDP peers in the network that might be attacked by Denial of Service (DoS).
The total number of (S, G) entries that can be stored in SA-Cache is limited by the SA-Cache specification. At present, the maximum number of (S, G) entries in SA-Cache for a FW is 8192.
For the (S, G) entries of a single peer, the following situations occur:
If the number of (S, G) entries to be saved is not set or is greater than 8192, a maximum of 8192 (S, G) entries can be saved in the SA cache.
If the number of (S, G) entries to be saved is smaller than 8192, a maximum of specified (S, G) entries can be saved in the SA cache. Additional (S, G) entries cannot be saved or advertised to PIM-SM but can be forwarded through SA messages.