Users Guide

Important Points to Remember
• Do not enable tx pause when buer carving is enabled. For information and assistance, consult Dell Networking TAC.
• The only conguration applicable to half duplex ports is rx off tx off. The following error is returned:
Can’t configure flowcontrol when half duplex is configure, config ignored
• Half duplex cannot be congured when the ow control conguration is on (default is rx on tx on). The following
error is returned:
Can’t configure half duplex when flowcontrol is on, config ignored
NOTE: The ow control must be o (rx off tx off) before conguring the half duplex.
• Speeds less than 1 Gig cannot be congured when the asymmetric ow control conguration is on. The following error is
returned:
Can’t configure speed <1G when Asymmetric flowcontrol is on, config ignored
• Dell Networking OS only supports rx on tx on and rx off tx off for speeds less than 1 Gig (Symmetric).
NOTE: If you use the disable rx flow control command, Dell Networking recommends rebooting the
system.
Example
Dell(conf-if-Te-1/1)#show config
!
interface TenGigabitEthernet 1/1
no ip address
switchport
no negotiation auto
flowcontrol rx off tx on
no shutdown
...
Example (Values)
This Example shows how Dell Networking OS negotiates the ow control values between two Dell Networking chassis
connected back-to-back using 1G copper ports.
Configured
LocRxConf LocTxConf RemoteRxConf RemoteTxConf
off off off off
off on
on off
on on
off on off off
off on
on off
on on
on off off off
off on
on off
on on
on on off off
off on
on off
on on
LocNegRx LocNegTx RemNegRx RemNegTx
off off off off
off off off off
off off off off
off off off off
off off off off
off off off off
Interfaces
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