cts sxp listener hold-time
To configure the global hold-time period of a listener network device in a Cisco TrustSec Security Group Tag
(SGT) Exchange Protocol version 4 (SXPv4) network, use the cts sxp listener hold-time command in global
configuration mode. To remove the hold time from the listener device, use the no form of this command.
cts sxp listener hold-time minimum-period maximum-period
no cts sxp listener hold-time
Syntax Description
Minimum allowed hold time in seconds. The range is from 1 to 65534.
minimum-period
Specifies the maximum allowed hold-time in seconds. The range is from 1 to
65534 seconds.
The maximum-period specified must be greater than or equal to the
minimum-period.
Note
maximum-period
Command Default
The default hold time range for a listener device is 90 seconds to 180 seconds.
Command Modes
Global configuration
Command History
ModificationRelease
This command was introduced.8.0(1)
Usage Guidelines
SXP uses a TCP-based, keepalive mechanism to determine if a connection is live. SXPv4 adds an optional
negotiated keepalive mechanism, the hold-time period, in order to provide more predictable and timely
detection of connection loss.
Hold time can be configured globally on a network device. This global configuration will apply the configuration
to all SXP connections configured on the device.
You may configure a hold-time period locally on a listener device or a default of 90 seconds to 180 seconds
is used. A value of “0xFFFF..0xFFFF” indicates that the keepalive mechanism is not used.
The hold-time negotiation between the speaker device and the listener device succeeds when the speaker’s
minimum acceptable hold-time falls below or within the desirable hold-time range of the listener. (Use the
cts sxp speaker hold-time command to configure the hold-time of the speaker device.) If one end turns off
the keepalive mechanism, the other end should also turn it off to make the negotiation successful.
The negotiation fails when the speaker's minimum acceptable hold-time is greater than the upper bound of
the listener's hold-time range.
The selected hold-time period of a successful negotiation is the maximum of the speaker’s minimum acceptable
hold-time and the lower bound of the listener’s hold-time range.
Cisco Nexus 7000 Series Security Command Reference
180
C Commands
cts sxp listener hold-time
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