Multiple Spb Vsis - HP 5920 series Configuration Manual

Table 2 SPBM multicast address fields
Field
M
L
TYP
SPSource ID
I-SID
In the figure, LSB represents the lower 4 bits of a byte, and MSB represents the higher 4 bits of a byte. The
first byte of an SPBM multicast address is identical to the combination of the first 4 bits of the SPSource
ID field, the TYP field, the L field, and the M field. For example, in the SPBM multicast address
E386070006E9, the first byte 1 1 10001 1 (E3 in hexadecimal format) consists of 1 1 10 (first 4 bits of
SPSource ID), 00 (TYP), 1 (L), and 1 (M).

Multiple SPB VSIs

You can use multiple SPB VSIs to transmit traffic for different Ethernet services that span different customer
sites. Each SPB VSI is identified by a unique I-SID.
For example, the network in
I-SID 300 extends traffic to customer sites B, C, and D.
•
I-SID 400 extends traffic to all customer sites.
•
I-SID 500 extends traffic to customer sites A and D.
•
All traffic in one SPB VSI is transmitted in one B-VLAN. Different SPB VSIs can use the same B-VLAN to
transmit traffic. Traffic of different SPB VSIs is isolated by I-SID.
Description
1-bit multicast flag. Its value is fixed at 1.
1-bit local flag bit. Its value is fixed at 1.
2-bit SPSource ID type. Its value is fixed at 0.
20-bit SPSource ID.
24-bit SPB VSI identifier.
Figure 7 has three SPB VSIs:
9