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
Data Units
(LACPDU)
link aggregation
group (LAG)
A group that increases the link speed beyond the limits of one single
cable or port, and increases the redundancy for higher availability.
load balancing The practice of splitting communication into two (or more) routes or
servers.
MAC-in-MAC
encapsulation
MAC-in-MAC encapsulation defines a BMAC-DA and BMAC-SA to
identify the backbone source and destination addresses. The originating
node creates a MAC header that the device uses for delivery from end
to end. As the MAC header stays the same across the network, there is
no need to swap a label or do a route lookup at each node, allowing the
frame to follow the most efficient forwarding path end to end.
management
information base
(MIB)
The MIB defines system operations and parameters used for the Simple
Network Management Protocol (SNMP).
multicast router
discovery
(MRDISC)
Provides the automatic discovery of multicast capable routers. By
listening to multicast router discovery messages, Layer 2 devices can
determine where to send multicast source data and Internet Group
Management Protocol (IGMP) host membership reports.
multihomed AS
An AS that has multiple connections to one or more ASs and does not
carry transit traffic.
multiplexing Carriage of multiple channels over a single transmission medium; a
process where a dedicated circuit is shared by multiple users. Typically,
data streams intersperse on a bit or byte basis (time division), or separate
by different carrier frequencies (frequency division).
next hop
The next hop to which a packet can be sent to advance the packet to the
destination.
not so stubby area
(NSSA)
Prevents the flooding of external link-state advertisements (LSA) into the
area by providing them with a default route. An NSSA is a configuration
of the Open Shortest Path First (OSPF) protocol.
out of band (OOB) Network dedicated for management access to chassis.
packet loss Expressed as a percentage of packets dropped over a specified interval.
Keep packet loss to a minimum to deliver effective IP telephony and IP
video services.
policing Ensures that a traffic stream follows the domain service provisioning
policy or service level agreement (SLA).
link aggregation group (LAG)
160 Network Design Reference for Avaya VSP 4000 February 2014
Comments? infodev@avaya.com