Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - BROADBAND ACCESS CONFIGURATION GUIDE 2010-10-12 Configuration Manual page 544

JunosE 11.3.x Broadband Access Configuration Guide
506
VLAN is 4 bytes, with the SVLAN ID occupying the 12 low-order bits of the 2 high-order
bytes, and the VLAN ID occupying the 12 low-order bits of the 2 low-order bytes; the
unused bits are 0. The data field length of a VPI/VCI is 4 bytes, with the VPI occupying
the 8 to 10 low-order bits of the 2 high-order bytes, and the VCI occupying the 16 bits of
the 2 low-order bytes; the unused bits are 0.
The format of the UPC data field (type 2) is hexadecimal; its data field length is 1 byte,
with the UPC occupying the 4 low-order bits of the value; the 4 high-order bits are 0.
Example 1—The Vendor-Specific suboption for a VLAN ID of 2468 (0x09a4) and a UPC
of 5 is formatted as follows:
09 0c 00 00 13 0a 07 01 02 09 a4 02 01 05
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| | | | L2 Circuit ID type: 1
| | | JUNOSE data len: 7 bytes
| | JUNOSE IANA: 13 0a
| subopt 9 len: 12 bytes
subopt code: 9
Example 2—The Vendor-Specific suboption for a VLAN ID of 135-2468 (0x87-0x09a4,
format <SVLAN ID>-<VLAN ID>) and a UPC of 5 is formatted as follows:
09 0e 00 00 13 0a 09 01 04 00 87 09 a4 02 01 05
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| | | | L2 Circuit ID type: 1
| | | JUNOSE data len: 9 bytes
| | JUNOSE IANA: 13 0a
| subopt 9 len: 14 bytes
subopt code: 9
Example 3—The Vendor-Specific suboption for a VPI/VCI of 123.45678 (0x7b.0xb26e,
format <VPI>.<VCI>) and a UPC of 5 is formatted as follows:
09 0e 00 00 13 0a 09 01 04 00 7b b2 6e 02 01 05
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| | | | L2 Circuit ID type: 1
| | | JUNOSE data len: 9 bytes
| | JUNOSE IANA: 13 0a
| subopt 9 len: 14 bytes
subopt code: 9
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| | | | UPC val: 5
| | | UPC len: 1 byte
| | UPC type: 2
| L2 Circuit ID val: 09 a4
L2 Circuit ID len: 2 bytes
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| | | | UPC val: 5
| | | UPC len: 1 byte
| | UPC type: 2
| L2 Circuit ID val: 00 87 09 a4
L2 Circuit ID len: 4 bytes
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| | | | UPC val: 5
| | | UPC len: 1 byte
| | UPC type: 2
| L2 Circuit ID val: 00 7b b2 6e
L2 Circuit ID len: 4 bytes
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