Alcatel-Lucent 7750 SR OS Interface Configuration Manual page 386

Configuration Commands
Parameters trace-string — Specifies either a string up to 62 bytes for SONET or 15 bytes for SDH. If the string
keepalive
Syntax keepalive time-interval
no keepalive
Context config>port>sonet-sdh>path>cisco-hdlc
config>port>tdm>ds1>channel-group>cisco-hdlc
config>port>tdm>ds3>cisco-hdlc
config>port>tdm>e1>channel-group>cisco-hdlc
config>port>tdm>e3>cisco-hdlc
Description
This command specifies the interval, in seconds, used to send periodic keepalive packets. The
receiver process expects to receive a keepalive packet every "keepalive interval". The link is
declared down if the receiver process does not receive a keepalive within the "timeout interval". The
link is declared up once the number of continual keepalive packets received equals to the up-count.
The nodes at the two endpoints of the cHDLC link should be provisioned with the same values.
Default
10
Parameters
time-interval — Specifies the interval used to send periodic keepalive packets.
up-count
Syntax up-count up-count
no up-count
Context config>port>sonet-sdh>path>cisco-hdlc
config>port>tdm>ds1>channel-group>cisco-hdlc
config>port>tdm>ds3>cisco-hdlc
config>port>tdm>e1>channel-group>cisco-hdlc
config>port>tdm>e3>cisco-hdlc
Description
This command configures the number of continual keepalive packets that have to be received in order
to declare the link up. It is expected that the nodes at the two endpoints of the cHDLC link are
provisioned with the same values.
Default
1
Parameters
up-count — Specifies the number of continual keepalive packets that must be received in order to
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contains spaces, enclose it in quotation marks.
Values
0 — 300 seconds. A value of 0 means no keepalive packets are sent.
declare the link up.
Values
1 — 3
7750 SR OS Interface Configuration Guide