Dell Force10 S55T FTOS Command Line Reference Guide for the S55 System FTOS 8. - Page 445

When the interface speed is negotiated to be at 1000Mbps, Auto-MDIX cannot be disabled. Therefore, if Auto-MDIX is disabled at 1000Mbps, FTOS sets the interface speed to 100Mbps and disables Auto-MDIX. When the link comes up, be sure to have correct cabling and FTOS sets the speed back to 1000Mbps. If the cabling is not correct for Auto-MDIX disabled (it is straight through cable), the speed stays at 100Mbps and the link stays down until a correct (ie. crossover) cable is inserted. clear counters c e s Clear the counters used in the show interfaces commands for all VRRP groups, VLANs, and physical interfaces, or selected ones. Syntax clear counters [interface] [vrrp [vrid] | learning-limit] Parameters interface vrrp vrid learning-limit (OPTIONAL) Enter the following keywords and slot/port or number information: • For a 1-Gigabit Ethernet interface, enter the keyword GigabitEthernet followed by the slot/port information. • For a Loopback interface, enter the keyword loopback followed by a number from 0 to 16383. • For a port channel interface, enter the keyword port-channel followed by the number of the port channel: C-Series and S-Series Range: 1-128 E-Series Range: 1 to 255 for TeraScale and ExaScale • For the management interface on the RPM, enter the keyword ManagementEthernet followed by slot/port information. The slot range is 0-1, and the port range is 0. • For a SONET interface, enter the keyword sonet followed by the slot/port information. • For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet followed by the slot/port information. • For a VLAN, enter the keyword vlan followed by a number from 1 to 4094. (OPTIONAL) Enter the keyword vrrp to clear statistics for all VRRP groups configured. Enter a number from 1 to 255 as the vrid. (OPTIONAL) Enter the keyword learning-limit to clear unknown source address (SA) drop counters when MAC learning limit is configured on the interface. Note: This option is not supported on the S-Series, as the MAC learning limit is not supported Defaults Without an interface specified, the command clears all interface counters. Command Modes EXEC Privilege Command History Version 8.3.5.0 Version 8.2.1.0 Version 8.1.1.0 Version 7.6.1.0 Version 7.5.1.0 Version 6.5.1.0 Introduced on the S55. Support for 4093 VLANs on E-Series ExaScale. Prior to release supported 2094. Introduced on E-Series ExaScale Introduced on S-Series Introduced on C-Series Updated definition of the learning-limit option for clarity. Interfaces | 445