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TDM Commands
The no form of this command restores the default.
Default
bcp-null
Parameters
atm — Specifies the encapsulation on the port is ATM.
bcp-null — When selected, this keyword specifies that only a single service is configured on this channel
and IEEE 802.1Q tags are not used as a service delimiter. Any IEEE 802.1Q tags encountered are
regarded as part of the customer payload and transparently forwarded. When bcp-null encapsulation is
specified, the PPP Bridge Control Protocol (BCP) is activated and all packets on this access port will be
encapsulated in accordance with the BCP protocol.
bcp-dot1q — When selected, this keyword specifies that ingress frames carry IEEE 802.1Q tags and the
tags are used as service delimiter. Any untagged packets are silently discarded with exception of
protocol specific packets. When bcp-dot1q encapsulation is specified, the PPP Bridge Control Protocol
(BCP) is activated and all packets on this access port will be encapsulated in accordance with the BCP
protocol.
ipcp — Ingress frames are encapsulated according to the IP Control Protocol. When ipcp encapsulation is
specified, the PPP IP Control Protocol will be activated and only packets that comply with IPCP
encapsulation are processed; others are silently discarded.
ppp-auto — (Network mode) Enables PPP on the associated port/channel. The activation of ipcp and
mplscp is automatically enabled depending on the protocol configuration. This encap type is only valid
on ports/channels in network mode.
frame-relay — Enables frame relay on the associated port/channel.
wan-mirror — The port is used for mirroring of frame-relay and POS ports. On these ports, no link
management protocol will run.
cisco-hdlc — Monitors line status on a serial interface by exchanging keepalive request messages with peer
network devices.
cem — On circuit emulation CMAs and MDAs, only the cem encap-type is supported. All other values are
blocked with an appropriate warning. The cem encap-type is not supported on other CMAs and MDAs
and are blocked with an appropriate warning.
feac-loop-respond
Syntax
[no] feac-loop-respond
Context
config>port>tdm>ds3
config>port>tdm>e3
Description
This command enables the associated DS-3 interface to respond to remote loop signals.
The DS-3 far-end alarm and control (FEAC) signal is used to send alarm or status information from the far-
end terminal back to the local terminal. DS-3 loopbacks at the far-end terminal from the local terminal are
initiated.
The no form of this command prevents the associated DS-3/E-3 interface from responding to remote loop
signals.
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7710 SR OS Interface Configuration Guide
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