Design Reference
Table Of Contents
- Contents
- Chapter 1: Introduction
- Chapter 2: New in this release
- Chapter 3: Network design fundamentals
- Chapter 4: Hardware fundamentals and guidelines
- Chapter 5: Optical routing design
- Chapter 6: Platform redundancy
- Chapter 7: Link redundancy
- Chapter 8: Layer 2 loop prevention
- Chapter 9: Spanning tree
- Chapter 10: Layer 3 network design
- Chapter 11: SPBM design guidelines
- Chapter 12: IP multicast network design
- Multicast and VRF-lite
- Multicast and MultiLink Trunking considerations
- Multicast scalability design rules
- IP multicast address range restrictions
- Multicast MAC address mapping considerations
- Dynamic multicast configuration changes
- IGMPv3 backward compatibility
- IGMP Layer 2 Querier
- TTL in IP multicast packets
- Multicast MAC filtering
- Guidelines for multicast access policies
- Multicast for multimedia
- Chapter 13: System and network stability and security
- Chapter 14: QoS design guidelines
- Chapter 15: Layer 1, 2, and 3 design examples
- Chapter 16: Software scaling capabilities
- Chapter 17: Supported standards, RFCs, and MIBs
- Glossary
IP multicast over SPBM restrictions
Review the following restrictions for the IP multicast over SPBM feature.
IGMP
The BEB must be the only IGMP querier in the network. If the BEB receives an IGMP query
from any other device, it causes unpredictable behavior, including traffic loss.
SPBM supports IGMP Snooping on a C-VLAN, but it does not support PIM on a C-VLAN. If
you enable IGMP Snooping on a C-VLAN, then its operating mode is Layer 2 VSN with IP
multicast over SPBM.
You must enable SSM snoop before you configure IGMP version 3, and you must enable both
ssm-snoop and snooping for IGMPv3.
For IGMP Snooping, ensure that the IGMP version used by multicast hosts and other devices
in the network is either the same as the IGMP version configured on the IGMP Snooping VLAN,
or that compatibility mode is enabled.
SSM
If you delete any ssm-map in a static range group, the switch deletes the entire static range
group. For example, create an ssm-map for 232.122.122.122 to 232.122.122.122.128 and
after that configure this same range in a static group. If you delete any ssm-map between
232.122.122.122. to 232.122.122.128, the switch deletes the entire static range group.
Data I-SID
The BEB matches a single multicast stream to a particular data I-SID. As a result there is a
one-to-one mapping between the S,G to data I-SID for each BEB.
IP address
IP multicast over SPBM only supports IPv4 multicast traffic in this release.
Supported services
Virtual Services Platform 4000 does not support IP multicast over SPBM routing on inter-VSN
routing interfaces.
Virtual Services Platform 4000 supports the following modes of IP multicast over SPBM:
• Layer 2 VSN multicast service — Multicast traffic remains within the same Layer 2 VSN
across the SPBM cloud.
• Layer 3 VSN multicast service — Multicast traffic remains within the same Layer 3 VSN
across the SPBM cloud.
• IP Shortcuts multicast service — Multicast traffic can cross VLAN boundaries but remains
confined to the subset of VLANs with the Global Routing Table that have IP multicast over
SPBM enabled.
IP multicast over SPBM restrictions
Network Design Reference for Avaya VSP 4000 February 2014 105