encap (PVC)
To change the encapsulation for a Frame Relay permanent virtual circuit (PVC), use the
encap
command in
Frame Relay PVC configuration mode. To restore default encapsulation from the Frame Relay main interface,
use the
no
form of this command.
encap
{
cisco| ietf
}
no encap
{
cisco| ietf
}
Syntax Description
(Optional) Uses Cisco encapsulation, which is a 4-byte header, with 2 bytes to identify the
data-link connection identifier (DLCI) and 2 bytes to identify the packet type.
cisco
(Optional) Sets the encapsulation method to comply with the Internet Engineering Task Force
(IETF) standard (RFC 1490). Use this keyword when connecting to equipment that belongs
to a vendor other than Cisco across a Frame Relay network.
ietf
Command Default
The default encapsulation keyword is Cisco.
When this command is not configured, encapsulation is inherited from the Frame Relay main interface.
Command Modes
Frame Relay PVC configuration (config-fr-vc)
Command History
Modification
Release
This command was introduced.
Release 4.0.0
Usage Guidelines
Use the
encap
command to configure encapsulation for a Frame Relay PVC. If this command is not configured,
encapsulation is inherited from the Frame Relay subinterface.
This command is available on Packet-over-SONET/SDH (POS), serial, and multilink interfaces.
Task ID
Operations
Task ID
read, write
fr
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Release 5.3.x
427
Frame Relay Commands on the Cisco ASR 9000 Series Router
encap (PVC)