how to check the default configuration of switch’s interface

Download as PDF

When taking into consideration that default settings are invisible in a configuration file, it is a good information that Huawei’s S3700/S5700 switches have such possibility to display default settings for ethernet interfaces. The ‘display this include-default’ command displays the effective configurations in the current view, including the unchanged default configurations.

[labnario-Ethernet0/0/1]display this include-default 
#
interface Ethernet0/0/1
 portswitch
 undo shutdown
 enable snmp trap updown
 undo set flow-stat interval
 undo qinq vlan-translation enable
 undo mac-address learning disable
 port priority 0
 port link-type hybrid
 port hybrid pvid vlan 1
 port hybrid untagged vlan 1
 qinq protocol 8100
 undo loopback-detect enable
 stp enable
 undo stp config-digest-snoop
 undo stp no-agreement-check
 undo stp root-protection
 undo stp loop-protection
 stp transmit-limit 147
 stp point-to-point auto
 stp compliance auto
 stp instance 0 port priority 128
 undo port mux-vlan enable
 undo mac-vlan enable
 undo ip-subnet-vlan enable
 undo rmon-statistics
 undo smart-link flush receive
 undo smart-link vll-notify enable
 undo ntdp enable
 undo ndp enable
 bpdu enable
 undo portal local-server enable
 undo dot1x enable
 dot1x max-user 256
 dot1x port-control auto
 dot1x port-method mac
 undo dot1x reauthenticate
 undo authentication critical eapol-success
 authentication max-reauth-req 20
 undo mac-authen
 mac-authen max-user 256
 mac-authen reauthenticate
 undo authentication open
 undo port-auto-sleep enable
 undo port-security enable
 undo qinq vlan-translation miss-drop
 undo port discard tagged-packet
 mac-learning priority 0
 undo mac-address flapping trigger error-down
 undo mac-address flapping trigger quit-vlan
 jumboframe enable 9216
 undo set flow-statistics include-interframe
 trap-threshold input-rate 100 resume-rate 100
 trap-threshold output-rate 100 resume-rate 100
 log-threshold input-rate 100 resume-rate 100
 log-threshold output-rate 100 resume-rate 100
 trap-threshold error-statistics 3 interval 10
 carrier up-hold-time 2000
 carrier down-hold-time 0
 undo port link-flap protection enable
 qos wrr
 qos queue 0 wrr weight 1
 qos queue 1 wrr weight 1
 qos queue 2 wrr weight 1
 qos queue 3 wrr weight 1
 qos queue 4 wrr weight 1
 qos queue 5 wrr weight 1
 qos queue 6 wrr weight 1
 qos queue 7 wrr weight 1
 trust 8021p outer
 undo dei enable
 qos phb marking enable
 undo arp anti-attack rate-limit enable
 undo arp-miss anti-attack rate-limit enable
 undo arp anti-attack check user-bind enable
 undo ip source check user-bind enable
 unicast-suppression 100
 multicast-suppression 100
 broadcast-suppression 100
 storm-control interval 5
 port type nni
 undo nd snooping enable
 undo nd snooping trusted
 undo dhcpv6 remote-id insert enable
 undo dhcpv6 remote-id rebuild enable

This command is supported in V100R006C03 and V200R001 software versions.

Let’s add some configuration to the interface:

[labnario-Ethernet0/0/1]display this
#
interface Ethernet0/0/1
#
return
[labnario-Ethernet0/0/1]port link-type access 
[labnario-Ethernet0/0/1]port default vlan 100
[labnario-Ethernet0/0/1]display this
#
interface Ethernet0/0/1
 port link-type access
 port default vlan 100
#
return

Now use ‘display this include-default‘ command again:

[labnario-Ethernet0/0/1]dis th include-default 
#
interface Ethernet0/0/1
 portswitch
 undo shutdown
 enable snmp trap updown
 undo set flow-stat interval
 undo qinq vlan-translation enable
 undo mac-address learning disable
 port priority 0
 port link-type access
 port default vlan 100
 qinq protocol 8100
 undo loopback-detect enable
 stp enable
 undo stp config-digest-snoop
 undo stp no-agreement-check
 undo stp root-protection
 undo stp loop-protection
 stp transmit-limit 147
 stp point-to-point auto
 stp compliance auto
 stp instance 0 port priority 128
 undo port mux-vlan enable
 undo mac-vlan enable
 undo ip-subnet-vlan enable
 undo rmon-statistics
 undo smart-link flush receive
 undo smart-link vll-notify enable
 undo ntdp enable
 undo ndp enable
 bpdu enable
 undo portal local-server enable
 undo dot1x enable
 dot1x max-user 256
 dot1x port-control auto
 dot1x port-method mac
 undo dot1x reauthenticate
 undo authentication critical eapol-success
 authentication max-reauth-req 20
 undo mac-authen
 mac-authen max-user 256
 mac-authen reauthenticate
 undo authentication open
 undo port-auto-sleep enable
 undo port-security enable
 undo qinq vlan-translation miss-drop
 undo port discard tagged-packet
 mac-learning priority 0
 undo mac-address flapping trigger error-down
 undo mac-address flapping trigger quit-vlan
 jumboframe enable 9216
 undo set flow-statistics include-interframe
 trap-threshold input-rate 100 resume-rate 100
 trap-threshold output-rate 100 resume-rate 100
 log-threshold input-rate 100 resume-rate 100
 log-threshold output-rate 100 resume-rate 100
 trap-threshold error-statistics 3 interval 10
 carrier up-hold-time 2000
 carrier down-hold-time 0
 undo port link-flap protection enable
 qos wrr
 qos queue 0 wrr weight 1
 qos queue 1 wrr weight 1
 qos queue 2 wrr weight 1
 qos queue 3 wrr weight 1
 qos queue 4 wrr weight 1
 qos queue 5 wrr weight 1
 qos queue 6 wrr weight 1
 qos queue 7 wrr weight 1
 trust 8021p outer
 undo dei enable
 qos phb marking enable
 undo arp anti-attack rate-limit enable
 undo arp-miss anti-attack rate-limit enable
 undo arp anti-attack check user-bind enable
 undo ip source check user-bind enable
 unicast-suppression 100
 multicast-suppression 100
 broadcast-suppression 100
 storm-control interval 5
 port type nni
 undo nd snooping enable
 undo nd snooping trusted
 undo dhcpv6 remote-id insert enable
 undo dhcpv6 remote-id rebuild enable
#
return

As you can see, the command shows both manually configured and default settings.

What if you want to come back to the previous settings (default):

  • Delete configuration one by one:
[labnario-Ethernet0/0/1]undo port default vlan 
[labnario-Ethernet0/0/1]undo port link-type
  • Perform one-touch configuration clearance on an interface:
[labnario]clear configuration interface Ethernet 0/0/1 
Warning: All configurations of the interface will be cleared, and its state will
 be shutdown. Continue? [Y/N] :y
Info: Total execute 2 command(s), 2 successful, 0 failed.
[labnario]dis cu int eth 0/0/1
#
interface Ethernet0/0/1
 shutdown
#
return

All configuration has been deleted. Note that interface went to ‘shutdown‘ state.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s