| Everton Marques | 9830ce2 | 2014-08-19 12:16:11 -0300 | [diff] [blame^] | 1 | WHY SSM |
| 2 | |
| 3 | Benefis of PIM SSM over PIM SM |
| 4 | ------------------------------ |
| 5 | |
| 6 | - SSM consumes minimum link bandwidth |
| 7 | - SSM simplifies multicast address management (specially important for |
| 8 | inter-domain multicast) |
| 9 | - SSM does not suffer instabilities from traffic-driven SPT switchover |
| 10 | - SSM does not use RP. Some RP issues: |
| 11 | - RP is possible point of failure |
| 12 | - RP demands redundancy management |
| 13 | - RP may require PIM dense mode support for RP election |
| 14 | - RP is possible performance bottleneck |
| 15 | - RP may demand lots of extra management |
| 16 | |
| 17 | PIM-SSM drawbacks |
| 18 | ----------------- |
| 19 | |
| 20 | - SSM requires IGMPv3 support on receivers |
| 21 | - SSM may be memory intensive when managing (S,G) states for |
| 22 | many-to-many multicast distribution |
| 23 | |
| 24 | --EOF-- |