The following table describes the packet fields used for different services and different traffic types, to generate the hash-label.
The following notes apply to Table: Packet fields used for PW hash-label generation on the 7210 SAS-Mxp :
Source and destination MAC addresses are from the outermost Ethernet header.
MPLS and PBB traffic encapsulation is identified by the system only if the outermost Ethernet header has two or fewer VLAN tags.
Any traffic with three or more VLAN tags uses source and destination MAC and VLAN to generate the hash label.
The value of the hash label generated for the packet is the same and is not influenced by the configuration of the load-balancing algorithm using the command configure>lag>load-balancing.
Traffic identified as ‟All other traffic” may or may not have the Ethertype packet field (for example: xSTP traffic does not have Ethertype). Ethertype is used only if available in the outermost Ethernet header for packets with two or fewer VLAN tags.
Traffic type |
Packet fields used |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
BDA |
BSA |
EtherType |
Ingress Port-ID |
ISID |
MPLS Label Stack |
Source and destination |
VLAN |
|||
|
MAC |
IP |
L4 Ports |
||||||||
VPLS and Epipe services SAP to SDP |
||||||||||
IP traffic |
✓ |
✓ |
✓ |
|||||||
PBB traffic |
✓ |
✓ |
✓ |
✓ |
||||||
MPLS traffic |
✓ |
✓ 1 |
✓ 2 |
|||||||
All other traffic |
✓ |
✓ |
✓ |
✓ |
||||||
VPLS service SDP to SDP |
||||||||||
All traffic |
✓ |
✓ 3 |
||||||||