Dell Force10 S55T FTOS Command Line Reference Guide for the S55 System FTOS 8. - Page 468
Caution, TeraScale 10/100/1000 Base-T Ethernet line cards.
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www.dell.com | support.dell.com Usage Information This command is available on C-Series and S-Series 10/100/1000 Base-T Ethernet interfaces and on TeraScale 10/100/1000 Base-T Ethernet line cards. The no negotiation auto command is only available if you first manually set the speed of a port to 10Mbits or 100Mbits. The negotiation auto command provides a mode option for configuring an individual port to forced-master/forced slave once auto-negotiation is enabled Note: The mode option is not available on non-10/100/1000 Base-T Ethernet line cards. Figure 15-20. negotiation auto Master/Slave Example Force10(conf)# int gi 0/0 Force10(conf-if)#neg auto Force10(conf-if-autoneg)# ? end Exit from configuration mode exit Exit from autoneg configuration mode mode Specify autoneg mode no Negate a command or set its defaults show Show autoneg configuration information Force10(conf-if-autoneg)#mode ? forced-master Force port to master mode forced-slave Force port to slave mode Force10(conf-if-autoneg)# If the mode option is not used, the default setting is slave. If you do not configure forced-master or forced slave on a port, the port negotiates to either a master or a slave state. Port status is one of the following: • Forced-master • Force-slave • Master • Slave • Auto-neg Error-typically indicates that both ends of the node are configured with forced-master or forced-slave. Caution: Ensure that one end of your node is configured as forced-master and one is configured as forced-slave. If both are configured the same (that is forced-master or forced-slave), the show interfaces command will flap between an auto-neg-error and forced-master/slave states. You can display master/slave settings with the show interfaces command. Figure 15-21. Display Auto-negotiation Master/Slave Setting (partial) Force10#show interfaces configured GigabitEthernet 13/18 is up, line protocol is up Hardware is Force10Eth, address is 00:01:e8:05:f7:fc Current address is 00:01:e8:05:f7:fc Interface index is 474791997 Internet address is 1.1.1.1/24 MTU 1554 bytes, IP MTU 1500 bytes LineSpeed 1000 Mbit, Mode full duplex, Master ARP type: ARPA, ARP Timeout 04:00:00 Last clearing of "show interfaces" counters 00:12:42 Queueing strategy: fifo Input Statistics: ... 468 | Interfaces