|
Feature |
Product |
Release introduced |
|---|---|---|
|
For configuration details, see VOSS User Guide. |
||
|
Internet Control Message Protocol (ICMP) |
5520 Series |
VOSS 8.2.5 |
|
VSP 4450 Series |
VSP 4000 4.0 |
|
|
VSP 4900 Series |
VOSS 8.1 |
|
|
VSP 7200 Series |
VOSS 4.2.1 |
|
|
VSP 7400 Series |
VOSS 8.0 |
|
|
VSP 8200 Series |
VSP 8200 4.0 |
|
|
VSP 8400 Series |
VOSS 4.2 |
|
|
VSP 8600 Series |
VSP 8600 4.5 |
|
|
XA1400 Series |
VOSS 8.0.50 |
|
|
ICMP broadcast and multicast enable or disable |
5520 Series |
VOSS 8.2.5 |
|
VSP 4450 Series |
VOSS 5.1 |
|
|
VSP 4900 Series |
VOSS 8.1 |
|
|
VSP 7200 Series |
VOSS 5.1 |
|
|
VSP 7400 Series |
VOSS 8.0 |
|
|
VSP 8200 Series |
VOSS 5.1 |
|
|
VSP 8400 Series |
VOSS 5.1 |
|
|
VSP 8600 Series |
VSP 8600 4.5 |
|
|
XA1400 Series |
Not Supported |
|
On IPv4 networks, a packet can be directed to an individual machine or broadcast to an entire network. When a packet is sent to an IP broadcast address from a machine on the local network, that packet is delivered to all machines on that network.
If a packet that is broadcast is an ICMP echo request packet, the machines on the network receive this ICMP echo request packet and send an ICMP echo reply packet back. When all the machines on a network respond to this ICMP echo request, the result can be severe network congestion or outages.
The switch always responds to IPv4 ICMP packets sent to a broadcast address. You can disable the processing of these IPv4 ICMP packets sent to the broadcast address. On disabling the ICMP broadcast processing, all the packets containing ICMP sent to the broadcast addresses will be dropped when the packets reach the control plane.
You can disable or enable the IPv4 ICMP broadcast processing at the VRF level.