Installation and Operation Manual
Appendix
E Encapsulation over PSN
ACE-3105, ACE-3205 Ver. 5.2
2BEncapsulation over Different PSN Types
E-5
Parameter Name
Purpose
Type 8100
If VLAN support is enabled, the Ethernet
packet type is set to 0x8100 . 2 bytes long.
VLAN tag
If VLAN support is enabled, this tag includes
the VLAN ID and its priority; configured per
PW. 2 bytes long.
Type 8847
MPLS packet type – 0x8847. 2 bytes long.
Tunnel label
Label of the PW tunnel between
ACE-3105, ACE-3205 and the PE. This
parameter is manually configured per
PW/peer and per direction, or dynamically
learned using LDP. 4 bytes long.
A different value is possible for the RX and
TX directions (tunnel in/out).
IP header
The protocol field of the IPv4 header is set
to 17 (UDP). 20 bytes long.
UDP
UDP bytes
LDP LDP
bytes
PHP Disabled – Data Packet
DA
SA
Type
8100
VLAN
tag
Type
8847
Tunnel
label
PW
label
Control
Word
Payload
Figure
E-6. MPLS Data Packet when PHP is Disabled
Table
E-5. Encapsulation Parameters
Parameter Name
Purpose
DA
Destination MAC address of the remote
peer or next hop unit. 6 bytes long.
SA
MAC address of the device. 6 bytes long.
Type 8100
If VLAN support is enabled, the Ethernet
packet type is set to 0x8100 . 2 bytes long.
VLAN tag
If VLAN support is enabled, this tag includes
the VLAN ID and its priority; configured per
PW. 2 bytes long.
Type 8847
MPLS packet type – 0x8847. 2 bytes long.
Optional
Optional
Содержание ACE-3205
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