Dell S6000 FTOS 9.0(2.0) Configuration Guide for the System - Page 413

Figure 20-26. Viewing all Dampened Interfaces FTOS# show interfaces dampening InterfaceState Flaps Penalty Half-LifeReuse SuppressMax-Sup Te 0/0 Up 0 0 5 750 2500 20 Te 0/1 Up 2 1200 20 500 1500 300 Te 0/2 Down 4 850 30 600 2000 120 View a dampening summary for the entire system using the command show interfaces dampening summary from EXEC Privilege mode, as shown in Figure 20-27. Figure 20-27. Viewing a System-wide Dampening Summary FTOS# show interfaces dampening summary 20 interfaces are configured with dampening. 3 interfaces are currently suppressed. Following interfaces are currently suppressed: Te 0/2 Te 3/1 Te 4/2 FTOS# Clear Dampening Counters Clear dampening counters and accumulated penalties using the command clear dampening, as shown in Figure 20-28. Figure 20-28. Clearing Dampening Counters FTOS# clear dampening interface Te 0/1 FTOS# show interfaces dampening TengigabitEthernet0/0 InterfaceState Flaps Penalty Half-LifeReuse SuppressMax-Sup Te 0/1 Up 0 0 20 500 1500 300 Configure MTU size on an Interface The S6000 supports a link Maximum Transmission Unit (MTU) of 12000 bytes and maximum IP MTU of 9234 bytes. The link MTU is the frame size of a packet, and the IP MTU size is used for IP fragmentation. If the system determines that the IP packet must be fragmented as it leaves the interface, FTOS divides the packet into fragments no bigger than the size set in the ip mtu command. In FTOS, MTU is defined as the entire Ethernet packet (Ethernet header + FCS + payload) Since different networking vendors define MTU differently, check their documentation when planing MTU sizes across a network. Interfaces | 391