Prevent Msdp From Caching A Remote Source - Dell Force10 S4810P Configuration Manual

Prevent MSDP from Caching a Remote Source

Task
OPTIONAL: Cache sources that are denied by the
SA filter in the rejected SA cache.
Prevent the system from caching remote sources
learned from a specific peer based on source and
group.
In Figure
filter is applied to R3. The entry remains in the SA cache until it expires; it is not stored in the rejected SA
cache.
Figure 31-13. Preventing MSDP from Advertising a Local Source
[Router 3]
R3_E600(conf)#do show run msdp
!
ip multicast-msdp
ip msdp peer 192.168.0.1 connect-source Loopback 0
ip msdp sa-filter in 192.168.0.1 list myremotefilter
R3_E600(conf)#do show run acl
!
ip access-list extended myremotefilter
seq 5 deny ip host 239.0.0.1 host 10.11.4.2
R3_E600(conf)#do show ip msdp sa-cache
MSDP Source-Active Cache - 1 entries
GroupAddr
239.0.0.1
R3_E600(conf)#do show ip msdp sa-cache
R3_E600(conf)#
R3_E600(conf)#do show ip msdp peer
Peer Addr: 192.168.0.1
Local Addr: 0.0.0.0(639)
State: Listening
Timers: KeepAlive
SourceActive packet count (in/out): 0/0
SAs learned from this peer: 0
SA Filtering:
Input (S,G) filter: myremotefilter
Output (S,G) filter: none
678
| Multicast Source Discovery Protocol (MSDP)
31-14, R1 is advertising source 10.11.4.2. It is already in the SA cache of R3 when an ingress SA
SourceAddr
10.11.4.2
Connect Source: Lo 0
Up/Down Time: 00:01:19
30 sec, Hold time
Command Syntax
ip msdp cache-rejected-sa
ip msdp sa-filter list out peer list ext-acl
RPAddr LearnedFrom
192.168.0.1 192.168.0.1
75 sec
Command Mode
CONFIGURATION
CONFIGURATION
Expire UpTime
1 00:03:59