ICMP
Description | User Impact |
IPv4 Fragmentation support | The switch is not fragmenting the datagram and forwards even when the |
| IP MTU of the forwarding Interface is set to a lower value (than the |
| datagram size). |
| This is a hardware limitation and is working as designed. The HW does |
| not allow the IP MTU to be configured per VLAN. We can configure the |
| maximum frame size in HW using the 'mtu' command in interface Ethernet |
| mode. However, if a packet exceeds the maximum frame size for a port, it |
| is discarded. If a packet happens to be sent to the software and it exceeds |
| the IP MTU, then the packet still will not be fragmented. An ICMP error |
| message is sent to the sender. |
ICMP Error message generation | The ICMP Error Message generated by the switch has the fields (TTL) |
| unmodified instead of sending with a modified value resulted as a part of |
| forwarding process. |
ICMPv6 Packet Too Big | The system is not generating Packet Too Big message to the source when |
| it forwards the packet through an interface vlan with mtu smaller than the |
| packet being forwarded. |
| The PowerConnect 6200 Series switches do not have the capability to |
| enforce IP MTU on VLAN Routing interfaces.. |
Multicast |
|
|
|
Description | User Impact |
Multicast VLC streams are not | This is not a mainstream problem. DVMRP functionality works fine and |
received on VLC client on complex | such issues are not seen in 2 or 3 router topologies. This issue is seen |
network topology. | only in complex topologies under high loads in the presence of other |
| multicast entries upon table full conditions. |
30 | System Firmware Version 3.2.0.6 |