PDP Configuration
FS
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Chapter 1 PDP Overview
1.1 Overview
PDP is used to discover network equipment, allowing the network management program to find all neighbors of a known device. It utilizes SNMP to query neighboring devices and acquire network topology. FS switches can discover neighboring devices but do not accept SNMP queries, meaning they operate at the network edge and may not acquire a complete network topology. PDP can be configured on all SNAPs, such as Ethernet.
1.2 PDP Configuration Tasks
- Default PDP Configuration
- Setting the PDP Clock and Information Storage
- Setting the PDP Version
- Starting PDP on a Switch
- Starting PDP on a Port
- PDP Monitoring and Management
1.2.1 Default PDP Configuration
| Function | Default Settings |
|---|---|
| Global configuration mode | This function is not enabled by default. |
| Interface configuration mode | Starts up. |
| PDP clock (packet transmission frequency) | 60 seconds |
| PDP information storage | 180 seconds |
| PDP version | 2 |
1.2.2 Setting the PDP Clock and Information Storage
To configure the PDP packet transmission frequency and PDP information storage time, use the following commands in global configuration mode:
| Command | Purpose |
|---|---|
pdp timer seconds |
Sets the transmission frequency of the PDP packets. |
pdp holdtime seconds |
Sets the PDP information storage time. |
1.2.3 Setting the PDP Version
To set the PDP version, use the following command in global configuration mode:
| Command | Purpose |
|---|---|
pdp version {1|2} |
Sets the PDP version. |
1.2.4 Starting PDP on a Switch
To enable PDP, use the following command in global configuration mode:
| Command | Purpose |
|---|---|
pdp run |
Starts PDP on a switch. |
1.2.5 Starting PDP on a Port
To enable PDP on a port by default, use the following command in port configuration mode:
| Command | Purpose |
|---|---|
pdp enable |
Starts PDP on a port of a switch. |
1.2.6 PDP Monitoring and Management
To monitor PDP, use the following commands in EXEC mode:
| Command | Purpose |
|---|---|
show pdp traffic |
Displays the counts of received and transmitted PDP packets. |
show pdp neighbor [detail] |
Displays neighbors that PDP discovers. |
1.3 PDP Configuration Example
Example 1: Starting PDP
Switch_config# pdp run
Switch_config# int f0/1
Switch_config_f0/1#pdp enable
Example 2: Setting the PDP clock and information storage
Switch_config#pdp timer 30
Switch_config#pdp holdtime 90
Example 3: Setting the PDP version
Switch_config#pdp version 1
Example 4: Monitoring PDP
Switch_config#show pdp neighbor
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater
| Device-ID | Local-Intf | Hldtme | Port-ID | Platform | Capability |
|---|---|---|---|---|---|
| Switch | Fas0/1 | 169 | Gig0/1 | COMPANY, RISC | RS |
