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: Layer 2 switch clustering and SMLT
- Chapter 10: Layer 3 switch clustering and RSMLT
- Chapter 11: Layer 3 switch clustering and multicast SMLT
- Chapter 12: Spanning tree
- Chapter 13: Layer 3 network design
- Chapter 14: SPBM design guidelines
- Chapter 15: 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
- Split-subnet and multicast
- Protocol Independent Multicast-Sparse Mode guidelines
- Protocol Independent Multicast-Source Specific Multicast guidelines
- Multicast for multimedia
- Chapter 16: System and network stability and security
- Chapter 17: QoS design guidelines
- Chapter 18: Layer 1, 2, and 3 design examples
- Glossary
Figure 6: 1000BASE-X RFI
End-to-end fault detection and VLACP
Because remote fault indication (RFI) terminates at the next Ethernet hop, the device that uses only
RFI cannot determine failures on an end-to-end basis over multiple hops.
However, you can use Virtual Link Aggregation Control Protocol (VLACP) to provide an end-to-end
failure detection mechanism. You can configure VLACP on a port and enable it over single links or
multilink trunks (MLT).
You can use VLACP with MLT to enhance its capabilities and provide quick failure detection. With
VLACP, the device can detect far-end failures, which permits MLT to fail over properly when end-to-
end connectivity is not guaranteed for some links in an aggregation group.
Physical layer redundancy
June 2015 Network Design Reference for Avaya VSP 4000 Series 37
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