Dell Force10 S55T S55 Configuration Guide FTOS 8.3.5.3 - Page 316
Ethernet Pause Frames, Link Dampening Support for XML, Con MTU size on an Interface
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www.dell.com | support.dell.com Figure 15-30. Clearing Dampening Counters Force10# clear dampening interface Gi 0/1 Force10# show interfaces dampening GigabitEthernet0/0 InterfaceState Flaps Penalty Half-LifeReuse SuppressMax-Sup Gi 0/1 Up 0 0 20 500 1500 300 Link Dampening Support for XML View the output of the following show commands in XML by adding | display xml to the end of the command: • show interfaces dampening • show interfaces dampening summary • show interfaces interface x/y Configure MTU size on an Interface The E-Series supports a link Maximum Transmission Unit (MTU) of 9252 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. Table 15-7 lists the range for each transmission media. Table 15-7. MTU Range Transmission Media Ethernet MTU Range (in bytes) 594-9252 = link MTU 576-9234 = IP MTU Ethernet Pause Frames c e s Ethernet Pause Frames is supported on platforms c s Threshold Settings are supported only on platforms: Ethernet Pause Frames allow for a temporary stop in data transmission. A situation may arise where a sending device may transmit data faster than a destination device can accept it. The destination sends a PAUSE frame back to the source, stopping the sender's transmission for a period of time. 316 | Interfaces
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