Cisco NME-16ES-1G User Guide - Page 127
Adjusting the Interval between Hello BPDUs, Changing the Forward-Delay Interval, bridge, hello-time
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16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Configuration Tasks • Changing the Forward-Delay Interval, page 127 • Changing the Maximum-Idle Interval, page 128 Note Each switch in a spanning tree adopts the interval between hello BPDUs, the forward delay interval, and the maximum idle interval parameters of the root switch, regardless of what its individual configuration might be. Adjusting the Interval between Hello BPDUs Beginning in privileged EXEC mode, follow these step to adjust the interval between hello BPDUs: Step 1 Step 2 Step 3 Step 4 Step 5 Command configure terminal bridge bridge-group hello-time seconds end show running-config copy running-config startup-config Purpose Enters global configuration mode. Specifies the interval between hello BPDUs. • For bridge-group, specify the bridge group number. The range is 1 to 255. • For seconds, enter a number from 1 to 10. The default is 2 seconds. Returns to privileged EXEC mode. Verifies your entry. (Optional) Saves your entry in the configuration file. To return to the default setting, use the no bridge bridge-group hello-time global configuration command. Changing the Forward-Delay Interval The forward-delay interval is the amount of time spent listening for topology change information after an interface has been activated for switching and before forwarding actually begins. Beginning in privileged EXEC mode, follow these steps to change the forward-delay interval: Step 1 Step 2 Command configure terminal bridge bridge-group forward-time seconds Step 3 Step 4 Step 5 end show running-config copy running-config startup-config Purpose Enters global configuration mode. Specifies the forward-delay interval. • For bridge-group, specify the bridge group number. The range is 1 to 255. • For seconds, enter a number from 10 to 200. The default is 20 seconds. Returns to privileged EXEC mode. Verifies your entry. (Optional) Saves your entry in the configuration file. To return to the default setting, use the no bridge bridge-group forward-time seconds global configuration command. Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ 127