Cli: Viewing And Configuring Fast-Uplink Stp - HP ProCurve Series 4100GL Management And Configuration Manual

802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP)
802.1D Spanning-Tree Protocol (STP)
Operating
as an Edge
Figure 14-20. Example Topology for the Listing Shown in Figure 14-21
14-36
In figure 14-19:
• Port A1 and Trk1 (trunk 1; formed from ports 2 and 3) are redundant
fast-uplink STP links, with trunk 1 forwarding (the active link) and
port A1 blocking (the backup link). (To view the configuration for port
A1 and Trk1, see figure 14-17 on page 14-34.)
• If the link provided by trunk 1 fails (on both ports), then port A1 begins
forwarding in fast-uplink STP mode.
• Ports A5, A6, and A24 are connected to end nodes and do not form
redundant links.

CLI: Viewing and Configuring Fast-Uplink STP

Using the CLI to View Fast-Uplink STP. You can view fast-uplink STP
using the same commands that you would use for standard STP opera­
show
tion:
Syntax:
show spanning-tree
Lists STP status.
show spanning-tree config
Lists STP configuration for the switch and for individual
ports.
For example, figures 14-20 and 14-21 illustrate a possible topology, STP status
listing, and STP configuration for a switch with:
■ STP enabled and the switch operating as an Edge switch
Port A1 and trunk 1 (Trk1) configured for fast-uplink STP operation
■
Several other ports connected to PC or workstation end nodes
■
STP
Block
Interior
HP
Switch
ProCurve
with STP
Switch
Enabled
Switch
Port
Trunk
STP
Root
Device
LAN