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Table Of Contents

Contents
Chapter 1: Introduction
- Purpose
- Related resources
- Support
Chapter 2: New in this release
- VOSS 4.2.1
  - Features
  - Other changes
- VOSS 4.2
  - Features
  - Other changes
Chapter 3: Network design fundamentals
Chapter 4: Hardware fundamentals and guidelines
- Supported hardware
- Platform considerations
- Hardware compatibility for VSP 4000
- Supported optical devices
- Dispersion considerations for long reach
- 10/100BASE-X and 1000BASE-TX reach
- 10/100/1000BASE-TX Auto-Negotiation recommendations
- Auto MDIX
- CANA
Chapter 5: Optical routing design
- Optical routing system components
Chapter 6: Platform redundancy
- Power redundancy
- Input/output port redundancy
- Configuration redundancy
- Link redundancy
Chapter 7: Link redundancy
- Physical layer redundancy
- MultiLink Trunking
- 802.3ad-based link aggregation
Chapter 8: Layer 2 loop prevention
- Loop prevention and detection
- SLPP example scenarios
Chapter 9: Layer 2 switch clustering and SMLT
- Split MultiLink Trunk configuration
Chapter 10: Layer 3 switch clustering and RSMLT
- Routed SMLT
- Switch clustering topologies and interoperability with other products
Chapter 11: Layer 3 switch clustering and multicast SMLT
- General guidelines
- Multicast triangle topology
- Square and full-mesh topology multicast guidelines
- SMLT and multicast traffic issues
Chapter 12: Spanning tree
- Spanning tree and protection against isolated VLANs
- MSTP and RSTP considerations
Chapter 13: Layer 3 network design
- VRF Lite
- Virtual Router Redundancy Protocol
- Open Shortest Path First
- Border Gateway Protocol
- IP routed interface scaling
- IPv6
Chapter 14: SPBM design guidelines
- 802.1aq standard
- VLANs without member ports
- Provisioning
- Implementation options
- Reference architectures
- Solution-specific reference architectures
- Best practices
- SPBM restrictions and limitations
- IP multicast over Fabric Connect restrictions
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
- DoS protection mechanisms
- Damage prevention
- Data plane security
- Control plane security
- Additional information
Chapter 17: QoS design guidelines
- QoS mechanisms
- QoS interface considerations
- Network congestion and QoS design
- QoS examples and recommendations
Chapter 18: Layer 1, 2, and 3 design examples
- Layer 1 example
- Layer 2 example
- Layer 3 example
Glossary

VOSS 4.2

Features

See the following section for information about feature-related changes in VOSS 4.1.

Features for VSP Operating System Software (VOSS)4.1

• IPv6

VSP 4000 VOSS 4.2 provides support for IPv6 routing. File Transfer Protocol (FTP), Trivial File

Transfer Protocol (TFTP), Hypertext Transfer Protocol (HTTP) and Hypertext Transfer Protocol

Secure (HTTPS) now support both IPv4 and IPv6 addresses, with no difference in functionality

or configuration. VSP 4000 VOSS 4.1 supported IPv6 routing, but the feature is initially

documented in the VSP 4000 VOSS 4.2 documentation suite. For more information about IPv6

routing, see Configuring IPv6 Routing on VSP Operating System Software, NN47227-507.

• IPv6 routing between L2 VSN

IPv6 routing between L2 VSN (inter-VSN routing) allows configuration of any SPB IPv6 capable

node to also provide Inter-ISID L2 VSN routing by adding an IPv6 interface to a port-less

CVLAN. IPv6 Unicast traffic can then be routed anywhere in the SPB fabric on SPB-IPv6

capable nodes. VSP 4000 VOSS 4.1 supported IPv6 routing between L2 VSN, but the feature

is initially documented in the VSP 4000 VOSS 4.2 documentation suite. For more information,

see

Implementation options on page 97.

• IPv6 Shortcut routing

VOSS 4.1 adds support for IPv6 Shortcuts, which function in a very similar manner to IPv4

Shortcuts. Both types of Shortcuts use IS-IS as the Interior Gateway Protocol (IGP) and the link

state packet (LSP) for reachability information. However, IPv4 Shortcuts use TLV 135 and IPv6

Shortcuts use TLV 236. All TLVs announced in the IS-IS LSPs are grafted onto the shortest

path tree (SPT) as leaf nodes.

IPv6 Shortcuts use some IPv4 Shortcuts functionality so IPv4 Shortcuts must be enabled

before you enable IPv6 Shortcuts. For more information, see Configuring IPv6 Routing on VSP

Operating System Software, NN47227-507 and Configuring Avaya Fabric Connect on VSP

Operating System Software, NN47227-510.

• IPv6 filters

VOSS 4.1 adds support for IPv6 ingress port/vlan security ACL/Filters. VSP 4000 supports a

maximum of 256 IPv6 ingress port/vlan security ACL/Filters. IPv6 ingress QoS ACL/Filters and

IPv6 egress security and QoS ACL/Filters are not supported. For more information, see

Configuration - QoS and ACL-Based Traffic Filtering Avaya Virtual Services Platform 4000

Series, NN46251-502.

• IP Multicast - PIM-SM

PIM-SM, as defined in RFC2362, supports multicast groups spread out across large areas of a

company or the Internet. PIM-SM sends multicast traffic only to routers that specifically join a

multicast group. This technique reduces traffic flow over WAN links and overhead costs for

processing unwanted multicast packets. For more information, see Configuring IP Multicast

Routing Protocols on Avaya Virtual Services Platform 4000 Series , NN46251-504.

VOSS 4.2

June 2015 Network Design Reference for Avaya VSP 4000 Series 13

Comments on this document? infodev@avaya.com