These are the some commands being used when performing network change or maintenance, depending on the features or services being run in the network. Typically, this is very useful in verification, troubleshooting and comparison between before and after the change.
| Commands | Description | Category |
| screen-length 0 temporary | display none split screen (useful in collecting info without pause) | Basic Command |
| display health | display usage information of system resources | Resources |
| display cpu-usage | display usage of CPU | Resources |
| display alarm all | display all alarms | Alarms |
| display alarm active | display active alarms | Alarms |
| display temperature | display the temperature | Hardware |
| display voltage | display the voltageq | Hardware |
| dir /all-filesystems | list files on all filesystems | Storage |
| dir cfcard: | list on cfcard: file system | Storage |
| dir slave#cfcard: | list on slave#cfcard: file system | Storage |
| display elabel | display board manufacture information | Board Info |
| display device | display device information | Board Info |
| display device pic-status | display device PIC card status | Board Info |
| display module-information | display the module information | Hardware |
| display esn | display equipment serial number | Hardware |
| display paf | display PAF(Product Adaptive File) | Hardware |
| display license | display license file | License |
| display license resource usage port-basic all | display all port basic license | License |
| display current-configuration | display the current configuration | Configuration |
| display startup | display startup configuration information | Configuration |
| display version | display hardware and software version information | Hardware/Software |
| display patch-information | display patch information | Software |
| display patch-information history | display patch history information | Software |
| display clock | display system clock | Hardware/Software |
| display switchover state | display HA-slave to master state | Configuration |
| display interface | display information of interfaces | Interface |
| display interface brief | list interface status and configuration |
Interface |
| display ip routing-table | display the IP routing table | Routing |
| display ip routing-table statistics | display summary stats of all IPv4 routes | Routing |
| display ipv6 routing-table statistics | display summary stats of all IPv6 routes | Routing |
| display ipv6 neighbors | display IPv6 neighbor cache entries | Routing |
| display isis peer | display ISIS neighbor | IGP |
| display ospf peer | display OSPF neighbor | IGP |
| display ospfv3 peer | display OSPFv3(IPv6) neighbor | IGP |
| display bgp peer | display BGP IPv4 neighbor | BGP |
| display bgp ipv6 peer | display BGP IPv6 neighbor | BGP |
| display bgp vpnv4 all peer | display BGP VPNv4 peer routers | BGP |
| display bgp vpnv6 all peer | display BGP VPNv6 peer routers | BGP |
| display ip vpn-instance | display VPN instance | BGP |
| display bgp evpn peer | display BGP EVPN neighbor | BGP |
| display bgp routing-table statistics | display BGP total IPv4 total no. of routes | BGP |
| display bgp ipv6 routing-table statistics | display BGP total IPv6 total no. of routes | BGP |
| display bgp vpnv4 all routing-table statistics | display BGP VPNv4 IPv6 total no. of routes | BGP |
| display bgp vpnv6 all routing-table statistics | display BGP VPNv6 IPv6 total no. of routes | BGP |
| display fib slot <x> statistics all | display summary of IPv4 FIB items | FIB |
| display ipv6 fib statistics all | display summary of IPv6 FIB items | FIB |
| display arp statistics all | display statistics about ARP entries | ARP |
| display mac-address summary | display of summary of MAC address | MAC |
| display mpls te tunnel-interface | display MPLS TE tunnel interface | MPLS-TE |
| display mpls ldp peer | diplay MPLS LDP peer | MPLS LDP/LSP |
| display mpls ldp session all | display MPLS LDP session | MPLS LDP/LSP |
| display mpls ldp lsp statistics | display MPLS LDP LSP session | MPLS LDP/LSP |
| display mpls lsp statistics | display MPLS LSP stats | MPLS LDP/LSP |
| display mpls mldp lsp statistics | display MPLS MLDP LSP stats | MPLS LDP/LSP |
| display vrrp brief | display VRRP summary | VRRP |
| display vrrp admin-vrrp | display config info of the admin VRRP | VRRP |
| display bfd session all | display BFD session | BFD |
| display bfd statistics | display BFD statistics | BFD |
| display mpls l2vc brief | display MPLS L2VPN LDP VC summary | VLL |
| display mpls static-l2vc brief | display MPLS Static layer 2 virtual circuit over MPLS summary | VLL |
| display mpls switch-l2vc brief | display MPLS switch-l2vc configuration summary | VLL |
| display l2vpn ccc-interface vc-type all | display all L2VPN CCC encapsulation interfaces | VLL |
| display multicast forwarding-table statistics | display Multicast forwarding table stats | Multicast |
| display pim routing-table brief | display PIM routing table summary | Multicast |
| display igmp interface | display IGMP interface | Multicast |
| display pim interface | display PIM interface | Multicast |
| display vsi | Virtual Switching Instance (VSI) status and config info | VPLS |
| display stp brief | display Spanning Tree Protocol (STP) summary | STP |
| display tunnel-info statistics | display tunnel information statistics | Tunnel |
| display aaa configuration | display AAA configuration | AAA |
| display aaa statistics | display AAA statistics | AAA |
| display bas-interface | display access interface information | Users |
| display max-onlineusers | display max online users since startup | Users |
| display access-user slot <x> | display online user by slot | Users |
| display aaa online-fail-record brief | display AAA Online-fail-record summary | Users |
| display aaa abnormal-offline-record brief | display AAA abnormal-offline-record summary | Users |
| display aaa offline-record brief | display AAA offline-record Switch | Users |
| display access-user | display online user | Users |
| display access-user user-type dhcp summary | display online user based on DHCP user type | Users |
| display access-user user-type dual-stack summary | display online user based on dual stack summary | Users |
| display access-user user-type ipv4 summary | display online user based on IPv4 summary | Users |
| display access-user user-type ipv6 summary | display online user based on IPv6 summary | Users |
| display access-user user-type lac summary | display online user based on LAC summary | Users |
| display access-user user-type lns summary | display online user based on LNS summary | Users |
| display access-user user-type pppoe summary | display online user based on PPPOE summary | Users |
| display dhcp-server group | display dhcp-server group information | DHCP |
| display domain | display the domain | Domain |
| display qos resource user-queue outbound | display QOS resource user queue outbound | QOS |
| display l2-multicast-channel | display L2-NAT | L2 Multicast |
| display l2-multicast forwarding-table vsi <VSI name> | display l2-multicast forwarding-table VSI | L2 Multicast |
| display l2tp tunnel | displayL2TP tunnel status and config info | L2TP |
| display ike sa | display IKE(Internet Key Exchange) SA | IPSEC |
| display ipsec sa | display IPsec SA | IPSEC |
| display ipsec statistics | display IPsec stats | IPSEC |
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