This section describes the commands you use to configure the industry standard Discovery Protocol (ISDP).
isdp run
This command enables ISDP on the switch.
Default: Enabled
Format: isdp run
Mode: Global Config
no isdp run
This command disables ISDP on the switch.
Format: no isdp run
Mode: Global Config
isdp holdtime
This command configures the hold time for ISDP packets that the switch transmits. The hold time specifies how long a receiving device should store information sent in the ISDP packet before discarding it. The range is given in seconds.
Default: 180 seconds
Format: isdp holdtime <10-255>
Mode: Global Config
isdp timer
This command sets the period of time between sending new ISDP packets. The range is given in seconds.
Default: 30 seconds
Format: isdp timer< 5-254>
Mode:Global Config
isdp advertise-v2
This command enables the sending of ISDP version 2 packets from the device.
Default: Enabled
Format: isdp advertise-v2
Mode: Global Config
no isdp advertise-v2
This command disables the sending of ISDP version 2 packets from the device.
Format: no isdp advertise-v2
Mode: Global Config
isdp enable
This command enables ISDP on an interface or range of interfaces.
NOTE: ISDP must be enabled both globally and on the interface in order for the interface to transmit. ISDP packets. If ISDP is globally disabled on the switch, the interface will not transmit ISDP packets, regardless of the ISDP status on the interface. To enable ISDP globally, use the command "isdp run".
Default: Enabled
Format: isdp enable
Mode: Interface Config
no isdp enable
This command disables ISDP on the interface.
Format: no isdp enable
Mode: Interface Config
clear isdp counters
This command clears ISDP counters.
Format: clear isdp counters
Mode: Privileged EXEC
clear isdp table
This command clears entries in the ISDP table.
Format: clear isdp table
Mode: Privileged EXEC
show isdp
This command displays global ISDP settings.
Format: show isdp
Mode: Privileged EXEC
The display parameters for above command are:
Timer: The frequency with which this device sends ISDP packets. This value is given in seconds.
Hold Time: The length of time the receiving device should save information sent by this device. This value is given in seconds.
ISDPv2 Advertisements: The setting for sending ISDPv2 packets. If disabled, version 1 packets are transmitted.
Device ID: The Device ID advertised by this device. The format of this Device ID is characterized by the value of the Device ID Format object.
Device ID Format Capability: Indicates the Device ID format capability of the device.
serialNumber indicates that the device uses a serial number as the format for its Device ID.
macAddress indicates that the device uses a Layer 2 MAC address as the format for its Device ID.
other indicates that the device uses its platform-specific format as the format for its Device ID.
Device ID Format: Indicates the Device ID format of the device.
serialNumber indicates that the value is in the form of an ASCII string containing the device serial number.
macAddress indicates that the value is in the form of a Layer 2 MAC address.
other indicates that the value is in the form of a platform specific ASCII string containing info that identifies the device. For example, ASCII string contains serialNumber appended/prepended with system name.
show isdp interface
This command displays ISDP settings for the specified interface.
Format: show isdp interface {all | <unit/slot/port>}
Mode: Privileged EXEC
Mode: ISDP mode enabled/disabled status for the interface(s).
show isdp entry
This command displays ISDP entries. If the device id is specified, then only entries for that device are shown.
Format: show isdp entry {all | deviceid}
Mode: Privileged EXEC
The display parameters for above command are:
Device ID: The device ID associated with the neighbor which advertised the information.
IP Addresses: The IP address(es) associated with the neighbor.
Platform: The hardware platform advertised by the neighbor.
Interface: The interface (unit/slot/port) on which the neighbor's advertisement was received.
Port ID: .The port ID of the interface from which the neighbor sent the advertisement.
Hold Time: The hold time advertised by the neighbor.
Version: The software version that the neighbor is running.
Advertisement Version: The version of the advertisement packet received from the neighbor.
Capability: ISDP Functional Capabilities advertised by the neighbor.
show isdp neighbors
This command displays the list of neighboring devices.
Format: show isdp neighbors [{<unit/slot/port> | detail}]
Mode: Privileged EXEC
The display parameters for above command are:
Device ID: The device ID associated with the neighbor which advertised the information.
IP Addresses: The IP addresses associated with the neighbor.
Capability: ISDP functional capabilities advertised by the neighbor.
Platform: The hardware platform advertised by the neighbor.
Interface: The interface (<unit/slot/port>) on which the neighbor's advertisement was received.
Port ID: The port ID of the interface from which the neighbor sent the advertisement.
Hold Time: The hold time advertised by the neighbor.
Advertisement Version: The version of the advertisement packet received from the neighbor.
Entry Last Changed Time: Displays when the entry was last modified.
Version: The software version that the neighbor is running.
show isdp traffic
This command displays ISDP statistics.
Format: show isdp traffic
Mode: Privileged EXEC
The display parameters for above command are:
ISDP Packets Received: Total number of ISDP packets received
ISDP Packets Transmitted: Total number of ISDP packets transmitted
ISDPv1 Packets Received: Total number of ISDPv1 packets received
ISDPv1 Packets Transmitted: Total number of ISDPv1 packets transmitted
ISDPv2 Packets Received: Total number of ISDPv2 packets received
ISDPv2 Packets Transmitted: Total number of ISDPv2 packets transmitted
ISDP Bad Header: Number of packets received with a bad header
ISDP Checksum Error: Number of packets received with a checksum error
ISDP Transmission Failure: Number of packets which failed to transmit
ISDP Invalid Format: Number of invalid packets received
ISDP Table Full: Number of times a neighbor entry was not added to the table due to a full database
ISDP IP Address Table Full: Displays the number of times a neighbor entry was added to the table without an IP address.
debug isdp packet
This command enables tracing of ISDP packets processed by the switch. ISDP must be enabled on both the device and the interface in order to monitor packets for a particular interface.
Format: debug isdp packet [{receive | transmit}]
Mode: Privileged EXEC
no debug isdp packet
This command disables tracing of ISDP packets on the receive or the transmit sides or on both sides.
Format: no debug isdp packet [{receive | transmit}]
