Home > Networking Solutions > Other Networking Solutions > General Networking Guides > Guides > Dell EMC Networking with Isilon Front-End Deployment and Best Practices > OS9 validation commands
In addition to sending traffic between hosts, the configuration shown in both topologies can be validated with the commands shown in this section. The validation for the Layer 2 topology only references sections show vlt brief through show vrrp brief.
Note: For more information on commands and output, see the Command Line Reference Guide for the applicable switch (links to documentation are provided in Documentation).
Command and output examples are provided for one spine and one leaf. This section only covers the validation of a single leaf, as the spine layer is running OS10EE. Command output on other switches is similar.
When BGP is configured, this command shows the status of all BGP connections. Each spine has four neighbors (the four leafs), and each leaf has two neighbors (the two spines). The two spine neighbors are shown below.
S4048-Leaf3#show ip bgp summary
BGP router identifier 10.0.2.3, local AS number 64703
BGP local RIB : Routes to be Added 0, Replaced 0, Withdrawn 0
16 network entrie(s) using 1216 bytes of memory
30 paths using 3240 bytes of memory
BGP-RIB over all using 3270 bytes of memory
19 BGP path attribute entrie(s) using 3456 bytes of memory
17 BGP AS-PATH entrie(s) using 170 bytes of memory
2 neighbor(s) using 16384 bytes of memory
Neighbor AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/Pfx
192.168.1.4 64601 28655 128086 0 0 0 3d:19:43:08 14
192.168.2.4 64602 128677 128092 0 0 0 3d:19:43:06 14
On switches with BGP configured, this command is used to verify the BGP entries in the Routing Information Base (RIB). Entries with multiple paths shown are used with ECMP.
The first set of routes with a subnet mask of /32 are the IPs configured for router IDs.
S4048-Leaf3 has two paths to all other leafs and two paths to Server 1’s network, 172.16.1.0. There is one path through each spine. If all paths do not appear, make sure the maximum-paths statement in the BGP configuration is equal to or greater than the number of spines in the topology.
S4048-Leaf3#show ip route bgp
Destination Gateway Dist/Metric Last Change
----------- ------- ----------- -----------
B EX 10.0.1.1/32 via 192.168.1.4 20/0 00:21:22
B EX 10.0.1.2/32 via 192.168.2.4 20/0 00:21:22
B EX 10.0.2.1/32 via 192.168.1.4 20/0 00:21:22
via 192.168.2.4
B EX 10.0.2.2/32 via 192.168.1.4 20/0 00:21:22
via 192.168.2.4
B EX 10.0.2.4/32 via 192.168.1.4 20/0 00:20:27
via 192.168.2.4
B EX 172.16.1.0/24 via 192.168.1.4 20/0 00:21:22
via 192.168.2.4
Note: The command show ip route <cr> can also be used to verify the information above, as well as static routes and direct connections.
This command is used to validate VLT configuration status on leaf switches in this topology. The Interchassis link (ICL) Link Status, Heart Beat Status, and VLT Peer Status must all be up. The role of one switch in the VLT pair is primary (not shown), and its peer switch is assigned the secondary role. Ensure peer routing is shown as enabled.
S4048-Leaf3#show vlt brief
VLT Domain Brief
------------------
Domain ID: 127
Role: Secondary
Role Priority: 32768
ICL Link Status: Up
HeartBeat Status: Up
VLT Peer Status: Up
Local Unit Id: 0
Version: 6(8)
Local System MAC address: f4:8e:38:2e:a0:f7
Remote System MAC address: f4:8e:38:2e:76:f7
Remote system version: 6(8)
Delay-Restore timer: 90 seconds
Delay-Restore Abort Threshold: 60 seconds
Peer-Routing : Enabled
Peer-Routing-Timeout timer: 0 seconds
Multicast peer-routing timeout: 150 seconds
This command is used to validate VLT LAG status on leaf switches in this topology. This command shows the status and active VLANs of all VLT LAGs. The local and peer status must both be up.
S4048-Leaf3#show vlt detail
Local LAG Id Peer LAG Id Local Status Peer Status Active VLANs
------------ ----------- ------------ ----------- -------------
1 1 UP UP 200
3 3 UP UP 200
5 5 UP UP 200
101 101 UP UP 200
102 102 UP UP 200
This command highlights configuration issues between VLT peers. Mismatch examples include incompatible VLT configuration settings, VLAN differences, different switch operating system versions, and STP inconsistencies. There should be no output to this command on any switch correctly configured for VLT. If there is, the mismatch must be resolved.
S4048-Leaf3#show vlt mismatch
S4048-Leaf3#
This command is used to validate the UFD status on leaf switches in this topology. Status: Enabled, Up indicates UFD is enabled and no interfaces are currently disabled by UFD.
S4048-Leaf3#show uplink-state-group 1
Uplink State Group: 1 Status: Enabled, Up
If an interface happens to be disabled by UFD, the show uplink-state-group command output appears as follows:
Uplink State Group: 1 Status: Enabled, Down
When an interface or port-channel has been disabled by UFD, the show port-channel value command for affected interfaces indicates it is error-disabled as follows:
S4048-Leaf3#show interface port-channel 1
Port-channel 1 is up, line protocol is down(error-disabled[UFD])
-- Output truncated –-
This command verifies that spanning tree is enabled on the leaf switches. All interfaces are forwarding (Sts column shows FWD). One of the leaf switches (S4048-Leaf1 in this example) is the root bridge, and sever-facing interfaces are edge ports.
S4048-Leaf3#show spanning-tree rstp brief
Executing IEEE compatible Spanning Tree Protocol
Root ID Priority 0, Address f48e.382e.a0f7
Root Bridge hello time 2, max age 20, forward delay 15
Bridge ID Priority 0, Address f48e.382e.a0f7
We are the root
Configured hello time 2, max age 20, forward delay 15
Interface Designated
Name PortID Prio Cost Sts Cost Bridge ID PortID
---------- -------- ---- ----- ----------- ------- -------------------- --------
Po 1 128.2 128 1800 FWD(vlt) 0 0 f48e.382e.a0f7 128.2
Po 3 128.4 128 1800 FWD(vlt) 0 0 f48e.382e.a0f7 128.4
Po 5 128.6 128 1800 FWD(vlt) 0 0 f48e.382e.a0f7 128.6
Po 101 128.102 128 1800 FWD(vlt) 0 0 f48e.382e.a0f7 128.102
Po 102 128.103 128 1800 FWD(vlt) 0 0 f48e.382e.a0f7 128.103
Po 128 128.129 128 600 FWD(vltI) 0 0 f48e.382e.a0f7 128.129
Interface
Name Role PortID Prio Cost Sts Cost Link-type Edge
---------- ------ -------- ---- ------- ----------- ------- --------- ----
Po 1 Desg 128.2 128 1800 FWD 0 (vlt) P2P Yes
Po 3 Desg 128.4 128 1800 FWD 0 (vlt) P2P Yes
Po 5 Desq 128.6 128 1800 FWD 0 (vlt) P2P Yes
Po 101 Desg 128.102 128 1800 FWD 0 (vlt) P2P Yes
Po 102 Desg 128.103 128 1800 FWD 0 (vlt) P2P Yes
Po 128 Desg 128.129 128 600 FWD 0 (vltI)P2P No
This command is used to verify that VRRP is correctly configured and that both switches in the VLT have the same virtual address.
S4048-Leaf3#show vrrp brief
Interface Group Pri Pre State Master addr Virtual addr(s) Description
--------------------------------------------------------------------------------
Vl 200 IPv4 200 150 Y Master 172.16.2.252 172.16.2.254