Design Reference

Contents
Chapter 1: Introduction......................................................................................................
9
Purpose.....................................................................................................................................................
9
Related resources.....................................................................................................................................
9
Documentation.................................................................................................................................
9
Training............................................................................................................................................
9
Avaya Mentor videos........................................................................................................................
10
Support......................................................................................................................................................
10
Searching a documentation collection..............................................................................................
10
Chapter 2: New in this release...........................................................................................
13
Features....................................................................................................................................................
13
Other changes...........................................................................................................................................
16
Chapter 3: Network design fundamentals........................................................................
17
Chapter 4: Hardware fundamentals and guidelines........................................................
19
Platform considerations.............................................................................................................................
19
Platform power.................................................................................................................................
19
Device cooling..................................................................................................................................
20
Avaya Virtual Services Platform 4000 Switch 4850GTS and 4850GTS-PWR+...............................
20
Avaya Virtual Services Platform power supply power specification.................................................
21
Avaya DC power supply...................................................................................................................
23
Hardware compatibility..............................................................................................................................
23
Supported optical devices.........................................................................................................................
24
Dispersion considerations for long reach..................................................................................................
27
10/100BASE-X and 1000BASE-TX reach................................................................................................
28
10/100/1000BASE-TX Auto-Negotiation recommendations.....................................................................
28
Auto MDIX.................................................................................................................................................
29
CANA........................................................................................................................................................
29
Chapter 5: Optical routing design.....................................................................................
31
Optical routing system components..........................................................................................................
31
Chapter 6: Platform redundancy.......................................................................................
33
Power redundancy....................................................................................................................................
33
Input/output port redundancy....................................................................................................................
34
Configuration redundancy.........................................................................................................................
34
Link redundancy........................................................................................................................................
34
Chapter 7: Link redundancy...............................................................................................
35
Physical layer redundancy........................................................................................................................
35
Multilink Trunking......................................................................................................................................
39
802.3ad-based link aggregation................................................................................................................
40
Chapter 8: Layer 2 loop prevention...................................................................................
43
Loop prevention and detection..................................................................................................................
43
SLPP example scenarios..........................................................................................................................
46
Chapter 9: Spanning tree...................................................................................................
51
Spanning tree and protection against isolated VLANs..............................................................................
51
MSTP and RSTP considerations..............................................................................................................
52
Chapter 10: Layer 3 network design.................................................................................
55
Network Design Reference for Avaya VSP 4000 February 2014 5