# Graphing the ICMP In tab using EDM

Use the following procedure to view read-only information about inbound ICMP messages.

## Procedure steps

1. From the navigation tree, double-click Graph.

2. In the Graph tree, double-click Chassis.

3. In the work area, click the ICMP In tab to view the information about inbound ICMP messages.

## Variable definitions

The following table describes the fields of ICMP In tab.

Field | Description
--- | ---
SrcQuenchs | Indicates the number of ICMP Source Quench messages received.
Redirects | Indicates the number of ICMP Redirect messages received.
Echos | Indicates the number of ICMP Echo (request) messages received.
EchoReps | Indicates the number of ICMP Echo Reply messages received.
Timestamps | Indicates the number of ICMP Timestamp (request) messages received.
TimestampReps | Indicates the number of ICMP Timestamp Reply messages received.
AddrMasks | Indicates the number of ICMP Address Mask Request messages received.
AddrMaskReps | Indicates the number of ICMP Address Mask Reply messages received.
ParmProbs | Indicates the number of ICMP Parameter Problem messages received.
DestUnreachs | Indicates the number of ICMP Destination Unreachable messages received.
TimeExcds | Indicates the number of ICMP Time Exceeded messages received.