Modify Flow control per interface

shrestha — Wed, 13 Sep 2023 00:48:32 GMT

Hi All,

I have been informed that my checkpoint firewall is sending pause to the switch and causing flaps to the BGP.

Checking the Interface via the ethtool confirms that the firewall is transmitting some pauses.

Expert@xx:0]# ethtool -S eth01 | grep -i flow_control
tx_flow_control_xon: 50
rx_flow_control_xon: 0
tx_flow_control_xoff: 61
rx_flow_control_xoff: 0
[Expert@a:0]#

[Expert@xx:0]# ethtool -a eth01
Pause parameters for eth01:
Autonegotiate: on
RX: on
TX: on

There is no TX-OVR when checking via netstat command.

I am planning to turn the autonegotiation off and and TX off as well via the ethtool command. Does the flow-control need to be disabled on the switch end as well.

The change done by ethtool won't survive the reboot. Can someone help me what needs to be configured on the interface to survive the reboot?

/etc/sysconfig/network-scripts/ifcfg-eth01

Kind regards

Anji

Re: Modify Flow control per interface

Wolfgang — Wed, 13 Sep 2023 05:21:31 GMT

@shrestha detailed information and how to set and to survive a reboot can be found here

Excessive RX Errors / RX Drops found on interface (checkpoint.com)

topic Re: Modify Flow control per interface in Firewall and Security Management

Modify Flow control per interface

Re: Modify Flow control per interface