Some of my favorite doing network connection and discovery with examples
here is a jumpstart guide that gives you a lot of the basics.... All so remember tab is your best buddy
http://learn.extremenetworks.com/rs/extreme/images/Extreme-Networks-Deployment-Jumpstart.pdf
show edp port all detail ... this will give you neoghbor detail about any two extreme switches that share a link including the vlans that are share don the link..
Port 1:1: EDP is Enabled
Tx stats: sw-pdu-tx=0 vlan-pdu-tx=0 pdu-tx-err=0
Rx stats: sw-pdu-rx=0 vlan-pdu-rx=0 pdu-rx-err=0
Time of last transmit error: None
Time of last receive error: None
-----------------------------------------------------------------------------
Port 1:2: EDP is Enabled
Tx stats: sw-pdu-tx=353518 vlan-pdu-tx=353517 pdu-tx-err=0
Rx stats: sw-pdu-rx=353507 vlan-pdu-rx=353506 pdu-rx-err=0
Time of last transmit error: None
Time of last receive error: None
Remote-System: PLW_X460G2_5959Basement_stack Age = 11
Remote-ID: 00:00:02:04:96:9a:37:be
Software version: 15.6.3.1
Remote-Port: 1:25
Port Type: Ethernet
Auto Negotiation: ON
Flow Control: NONE
Duplex Speed: Configured = AUTO Actual = FULL
Port Speed (MB): Configured = AUTO Actual = 1 Gbps
Remote-Vlans:
nm_phono_3801 (3801, 192.168.231.196) Age = 13
plw_wapcom_774 (774) Age = 13
plw_servers_773 (773) Age = 13
plw_srx_dmz_775 (775, 10.80.253.4) Age = 13
private_plw_792 (792) Age = 13
plw_inet_dns1_598 (598) Age = 13
plw_inet_dns2_597 (597) Age = 13
plw_inet_plw5959_2396 (2396) Age = 13
plw_srx_toweroaks_769 (769) Age = 13
Slot-2 PLW_X670G2_5959_Stack.2 # sh por 1:2 info detail gives you vlan info detail on that port plus other things
Slot-2 PLW_X670G2_5959_Stack.2 # sh por 1:2 info det
Port 1:2: EDP is Enabled
Tx stats: sw-pdu-tx=353518 vlan-pdu-tx=353517 pdu-tx-err=0
Rx stats: sw-pdu-rx=353507 vlan-pdu-rx=353506 pdu-rx-err=0
Time of last transmit error: None
Time of last receive error: None
Remote-System: PLW_X460G2_5959Basement_stack Age = 11
Remote-ID: 00:00:02:04:96:9a:37:be
Software version: 15.6.3.1
Remote-Port: 1:25
Port Type: Ethernet
Auto Negotiation: ON
Flow Control: NONE
Duplex Speed: Configured = AUTO Actual = FULL
Port Speed (MB): Configured = AUTO Actual = 1 Gbps
Remote-Vlans:
nm_phono_3801 (3801, 192.168.231.196) Age = 13
plw_wapcom_774 (774) Age = 13
plw_servers_773 (773) Age = 13
plw_srx_dmz_775 (775, 10.80.253.4) Age = 13
private_plw_792 (792) Age = 13
plw_inet_dns1_598 (598) Age = 13
plw_inet_dns2_597 (597) Age = 13
plw_inet_plw5959_2396 (2396) Age = 13
plw_srx_toweroaks_769 (769) Age = 13
-----------------------------------------------------------------------------
Port 1:3: EDP is Enabled
Tx stats: sw-pdu-tx=0 vlan-pdu-tx=0 pdu-tx-err=0
Rx stats: sw-pdu-rx=0 vlan-pdu-rx=0 pdu-rx-err=0
Time of last transmit error: None
Time of last receive error: None
-----------------------------------------------------------------------------
Port 1:4: EDP is Enabled
Tx stats: sw-pdu-tx=0 vlan-pdu-tx=0 pdu-tx-err=0
Rx stats: sw-pdu-rx=0 vlan-pdu-rx=0 pdu-rx-err=0
Time of last transmit error: None
Slot-2 PLW_X670G2_5959_Stack.2 # sh por 1:2 info det
Port: 1:2(p1-2_460G2-1-25):
Virtual-router: VR-Default
Type: SF+_OC10m (Unsupported)
Random Early drop: Unsupported
Admin state: Enabled with 1G full-duplex
Link State: Active, 1Gbps, full-duplex
Link Ups: 0 Last: Mon Oct 16 11:25:16 2017
Link Downs: 0 Last: Mon Oct 16 11:23:36 2017
VLAN cfg:
Name: nm_phono_3801, 802.1Q Tag = 3801, MAC-limit = No-limit, Virtual router: VR-Default
Port-specific VLAN ID: 3801
Name: plw_inet_dns1_598, 802.1Q Tag = 598, MAC-limit = No-limit, Virtual router: VR-Default
Port-specific VLAN ID: 598
Name: plw_inet_dns2_597, 802.1Q Tag = 597, MAC-limit = No-limit, Virtual router: VR-Default
Port-specific VLAN ID: 597
Name: plw_inet_plw5959_2396, 802.1Q Tag = 2396, MAC-limit = No-limit, Virtual router: VR-Default
Port-specific VLAN ID: 2396
Name: plw_servers_773, 802.1Q Tag = 773, MAC-limit = No-limit, Virtual router: VR-Default
Port-specific VLAN ID: 773
Name: plw_srx_dmz_775, 802.1Q Tag = 775, MAC-limit = No-limit, Virtual router: VR-Default
Port-specific VLAN ID: 775
Name: plw_srx_toweroaks_769, 802.1Q Tag = 769, MAC-limit = No-limit, Virtual router: VR-Default
Port-specific VLAN ID: 769
Name: plw_wapcom_774, 802.1Q Tag = 774, MAC-limit = No-limit, Virtual router: VR-Default
Port-specific VLAN ID: 774
Name: private_plw_792, 802.1Q Tag = 792, MAC-limit = No-limit, Virtual router: VR-Default
Port-specific VLAN ID: 792
STP cfg:
Protocol:
Trunking: Master port with 2 members using algorithm address based - L2
algorithm
Members: 1:2,2:2
EDP: Enabled
ELSM: Disabled
Ethernet OAM: Disabled
Learning: Enabled
Unicast Flooding: Enabled
Multicast Flooding: Enabled
Broadcast Flooding: Enabled
Jumbo: Enabled, MTU= 9216
Flow Control: Rx-Pause: Enabled Tx-Pause: Disabled
Priority Flow Control: Disabled
Reflective Relay: Disabled
Link up/down SNMP trap filter setting: Enabled
Egress Port Rate: No-limit
Broadcast Rate: No-limit
Multicast Rate: No-limit
Unknown Dest Mac Rate: No-limit
QoS Profile: None configured
Ingress Rate Shaping : Unsupported
Ingress IPTOS Examination: Disabled
Ingress 802.1p Examination: Enabled
Ingress 802.1p Inner Exam: Disabled
Ingress 802.1p Priority: 0
Egress IPTOS Replacement: Disabled
Egress 802.1p Replacement: Disabled
NetLogin: Disabled
NetLogin port mode: Port based VLANs
Smart redundancy: Enabled
Software redundant port: Disabled
IPFIX: Disabled Metering: Ingress, All Packets, All Traffic
IPv4 Flow Key Mask: SIP: 255.255.255.255 DIP: 255.255.255.255
IPv6 Flow Key Mask: SIP: ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
DIP: ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
Far-End-Fault-Indication: Disabled
Shared packet buffer: default
VMAN CEP egress filtering: Disabled
Isolation: Off
PTP Configured: Disabled
Time-Stamping Mode: None
Synchronous Ethernet: Unsupported
Dynamic VLAN Uplink: Disabled
VM Tracking Dynamic VLANs: Disabled
show ipr gives your routing detail and any vlan that has an ip configured with ip forwarding enabled is routing between vlans
Slot-2 PLW_X670G2_5959_Stack.3 # sh ipr
Ori Destination Gateway Mtr Flags VLAN Duration
#s Default Route 192.168.231.1 1 UG---S-um--f- nm_phono_3801 729d:10h:41m:1s
#d 172.16.59.0/24 172.16.59.1 1 U------um--f- PLW_San_595 729d:10h:41m:2s
#d 192.168.231.0/24 192.168.231.107 1 U------um--f- nm_phono_3801 729d:10h:41m:2s