HP ProCurve 9304M Installation And Configuration Manual page 276

Installation and Basic Configuration Guide
C o nf i g u r i n g S u p e r S pa n
To configure an HP device for SuperSpan:
• Configure each interface on the HP device that is connected to customer equipment as a boundary interface.
This step enables the interface to convert the destination MAC address in the customer's BPDUs.
The software requires you to specify a SuperSpan customer ID when configuring the boundary interface.
Use an ID from 1 – 65535. The customer ID uniquely identifies the customer. Use the same customer ID for
each SP interface with the same customer. When tunneling BPDUs through the HP network, the devices use
the customer ID to ensure that BPDUs are forwarded only to the customer's devices, and not to other
customers' devices.
• Globally enable SuperSpan. This step enables the Preforwarding state.
Configuring a Boundary Interface
To configure the boundary interfaces on SP 1 in Figure 8.26 on page 8-65, enter the following commands:
HP9300(config)# interface 1/1
HP9300(config-if-e1000-1/1)# stp-boundary 1
HP9300(config)# interface 1/2
HP9300(config-if-e1000-1/2)# stp-boundary 2
These commands configure two interfaces on the HP device as SuperSpan boundary interfaces. Interface
1/1 is a boundary interface with customer 1. Interface 1/2 is a boundary interface with customer 2. Each
boundary interface is associated with a number, which is the SuperSpan ID. The SuperSpan ID identifies the
instance of SuperSpan you are associating with the interface. Use the same SuperSpan ID for each boundary
interface with the same customer. Use a different SuperSpan ID for each customer. For example, use SuperSpan
ID 1 for all the boundary interfaces with customer 1 and use SuperSpan ID 2 for all boundary interfaces with
customer 2.
Syntax: [no] stp-boundary <num>
The <num> parameter specifies the SuperSpan ID. You can specify a number from 1 – 65535.
To configure the boundary interfaces on SP 2 in Figure 8.26 on page 8-65, enter the following commands:
HP9300(config)# interface 2/1
HP9300(config-if-e1000-2/1)# stp-boundary 1
HP9300(config)# interface 2/2
HP9300(config-if-e1000-2/2)# stp-boundary 2
Enabling SuperSpan
After you configure the SuperSpan boundary interfaces, enable SuperSpan. You can enable SuperSpan globally
or on an individual VLAN level. If you enable the feature globally, the feature is enabled on all VLANs.
NO TE: If you enable the feature globally, then create a new VLAN, the new VLAN inherits the global SuperSpan
state. For example, if SuperSpan is globally enabled when you create a VLAN, SuperSpan also is enabled in the
new VLAN.
You also can change the length of the Preforwarding state to a value from 3 – 30 seconds. The default is 5
seconds.
To globally enable SuperSpan, enter the following command:
HP9300(config)# super-span-global
Syntax: [no] super-span-global [preforward-delay <secs>]
The <secs> parameter specifies the length of the Preforwarding state. You can specify from 3 – 30 seconds. The
default is 5 seconds.
SuperSpan is enabled in all VLANs on the device. To disable SuperSpan in an individual VLAN, enter commands
such as the following:
HP9300(config)# vlan 10
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