Dell FCX624-E Laptop User Manual


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PowerConnect B-Series FCX Configuration Guide 215
53-1002266-01
Configuring standard STP parameters
8
Displaying STP information for an entire device
To display STP information, enter the following command at any level of the CLI.
Syntax: show span [vlan <vlan-id>] | [pvst-mode] | [<num>] | [detail [vlan <vlan-id> [ethernet
[<port>] | <num>]]
The vlan <vlan-id> parameter displays STP information for the specified port-based VLAN.
The pvst-mode parameter displays STP information for the device Per VLAN Spanning Tree (PVST+)
compatibility configuration. Refer to “PVST/PVST+ compatibility” on page 275
Specify the <port> variable in the following formats:
PowerConnect B-Series FCX stackable switches – <stack-unit/slotnum/portnum>
The <num> parameter displays only the entries after the number you specify. For example, on a
device with three port-based VLANs, if you enter 1, then information for the second and third VLANs
is displayed, but information for the first VLAN is not displayed. Information is displayed according
to VLAN number, in ascending order. The entry number is not the same as the VLAN number. For
example, if you have port-based VLANs 1, 10, and 2024, then the command output has three STP
entries. To display information for VLANs 10 and 2024 only, enter show span 1.
The detail parameter and its additional optional parameters display detailed information for
individual ports. Refer to “Displaying detailed STP information for each interface” on page 219.
The show span command shows the following information.
PowerConnect#show span
VLAN 1 BPDU cam_index is 3 and the Master DMA Are(HEX)
STP instance owned by VLAN 1
Global STP (IEEE 802.1D) Parameters:
VLAN Root Root Root Prio Max He- Ho- Fwd Last Chg Bridge
ID ID Cost Port rity Age llo ld dly Chang cnt Address
Hex sec sec sec sec sec
1 800000e0804d4a00 0 Root 8000 20 2 1 15 689 1 00e0804d4a00
Port STP Parameters:
Port Prio Path State Fwd Design Designated Designated
Num rity Cost Trans Cost Root Bridge
Hex
1 80 19 FORWARDING 1 0 800000e0804d4a00 800000e0804d4a00
2 80 0 DISABLED 0 0 0000000000000000 0000000000000000
3 80 0 DISABLED 0 0 0000000000000000 0000000000000000
4 80 0 DISABLED 0 0 0000000000000000 0000000000000000
5 80 19 FORWARDING 1 0 800000e0804d4a00 800000e0804d4a00
6 80 19 BLOCKING 0 0 800000e0804d4a00 800000e0804d4a00
7 80 0 DISABLED 0 0 0000000000000000 0000000000000000
<lines for remaining ports excluded for brevity>