R2511-HP MSR Router Series Layer 2 - WAN Command Reference(V5)

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[Sysname-Serial2/0] x25 packet-size 256 256
x25 pvc
Use x25 pvc to configure a PVC route.
Use undo x25 pvc to delete a PVC route.
Syntax
x25 pvc pvc-number protocol-type protocol-address x121-address x.121-address [ option ]
undo x25 pvc pvc-number
Default
No PVC is created. When creating such a PVC, if you do not set the relevant attributes for the PVC, its
flow control parameters will be the same as that of the X.25 interface (the flow control parameters on an
X.25 interface can be set by the x25 packet-size and x25 window-size commands).
Views
Interface view
Default command level
2: System level
Parameters
pvc-number: PVC number, in the range 1 to 4095 (inclusive), and must be in the PVC channel range.
protocol-type: Upper-layer protocol carried over the permanent virtual circuit, which can be ip (indicating
that the upper-layer network protocol is IP protocol) or compressedtcp (indicating that the upper-layer
network protocol is IP protocol, and supports TCP head compressing).
protocol-address: Network protocol address of the peer end of the PVC.
x121-address x.121-address: Specifies the X.121 address of the peer end of this PVC.
option: Attribute option of the PVC.
Table 78 Description on the PVC attribute options
O
p
tion Descri
p
tion
broadcast Forwards broadcast packets to the PVC peer.
encapsulation-type Encapsulation type: nonstandard, ietf, multi-protocol, or snap.
compress Compresses X.25 payload.
packet-size input-packet
output-packet
Specifies the maximum input packet length and maximum output packet
length in bytes, which are both in the range of 16 to 4096 and must be
the integer power of 2.
window-size input-window-size
output-window-size
Specifies the input and output window sizes of the PVC. When the
modulo is 8, it is in the range 1 to 7. When the modulo is 128, it is in the
range 1 to 127.
Usage guidelines
Because an address mapping is created along with the PVC, it is unnecessary (or impossible) to establish
an address mapping first before creating PVCs.