configuration PDP Directory
This chapter will introduce how to configure
PDP of a router.
PDP is a two-layer protocol specially for
detecting network equipments, is used to discover all neighbors of a known
equipment in network management program. Users can know type and agent address
of SNMP of neighbor equipment through using PDP. The network management program
can query the neighboring devices for information about the topology services by
SNMP.
Though the PDP of D-Link Routers can discover the
neighboring devices , it can not Use SNMP to query neighboring devices. So,
D-Link can only be the edge of network, or ,it will not get the full network
topology.
PDP on a router can configure to all SANP (such as Ethernet, HDLC, frame relay,PPP).
Default
PDP configuration on a router
Enable
PDP on a router’s interface
Default PDP configuration on a router
function |
default |
PDP
overall configuration mode |
down |
PDP
interface configuration mode |
down |
PDPclock(transmit
frequency) |
60 seconds |
PDP
hold time |
180 seconds |
Users can use following commands to set PDP transmit frequency and holdtime in overall configuration mode:
step |
command |
purpose |
1 |
pdp
timer seconds |
Set PDP transmit frequency |
2 |
pdp
holdtime seconds |
Set
PDP holdtime |
If
in default ,PDP is down, user can start PDP through using following command in
overall configuration mode:
Command
|
Purpose
|
pdp
run |
Start
PDP on a router |
Enable PDP on a router’s interface
If in default, PDP is down,
after starting PDP on a router, users can use following commands to start PDP in
interface configuration mode:
command |
purpose |
pdp
enable |
start PDP on a router’s interface |
Users can use following
commands to monitor PDP:
command |
purpose
|
show pdp traffic |
display
the count of PDP tansmitted and received by the Router |
show pdp neighbor [detail] |
Display
neighbors of the router discovered by PDP |
enablel PDP:
Router_config#
pdp run
Router_config#
int f0/0
Router_config_f0/0#pdp enable
set PDP clock and holdtime
Router_config#
pdp timer 30
Router_config#
pdp holdtime 90
monitor PDP information
router#
show pdp neighbors
Capability
Codes:R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H -
Host,
I - IGMP, r - Repeater
Device
ID Local IntrfceHoldtmeCapabilityPlatform Port ID
joeEth
0 133 4500 Eth 0
samEth
0 152 R AS5200 Eth 0