Configuration Guide
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... Network Configuration Examples 1-15 Design Concepts for Using the Switch 1-16 Small to Medium-Sized Network Using Catalyst 3750 Switches 1-21 Large Network Using Catalyst 3750 Switches 1-23 Multidwelling Network Using Catalyst 3750 Switches 1-25 Long-Distance, High-Bandwidth Transport Configuration 1-26 Where to Go Next...Commands 2-4 Understanding CLI Error Messages 2-5 Using Configuration Logging 2-5 Using Command History 2-6 Changing the Command History Buffer Size 2-6 Recalling Commands 2-6 Disabling the Command History Feature 2-7 Using Editing Features 2-7 Enabling and Disabling Editing ...
... Network Configuration Examples 1-15 Design Concepts for Using the Switch 1-16 Small to Medium-Sized Network Using Catalyst 3750 Switches 1-21 Large Network Using Catalyst 3750 Switches 1-23 Multidwelling Network Using Catalyst 3750 Switches 1-25 Long-Distance, High-Bandwidth Transport Configuration 1-26 Where to Go Next...Commands 2-4 Understanding CLI Error Messages 2-5 Using Configuration Logging 2-5 Using Command History 2-6 Changing the Command History Buffer Size 2-6 Recalling Commands 2-6 Disabling the Command History Feature 2-7 Using Editing Features 2-7 Enabling and Disabling Editing ...
Configuration Guide
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... Commands, page 2-6 (optional) • Disabling the Command History Feature, page 2-7 (optional) Changing the Command History Buffer Size By default, the switch records ten command lines in its history buffer. The command history feature is controlled by the setting of the terminal history global configuration command and the history line configuration command. 1. These...of -lines] The range is from 0 to 256. Repeat the key sequence to more recent commands. Return to recall successively older commands. Catalyst 3750 Switch Software Configuration Guide 2-6 OL-8550-02
... Commands, page 2-6 (optional) • Disabling the Command History Feature, page 2-7 (optional) Changing the Command History Buffer Size By default, the switch records ten command lines in its history buffer. The command history feature is controlled by the setting of the terminal history global configuration command and the history line configuration command. 1. These...of -lines] The range is from 0 to 256. Repeat the key sequence to more recent commands. Return to recall successively older commands. Catalyst 3750 Switch Software Configuration Guide 2-6 OL-8550-02
Configuration Guide
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... Table 30-3 on the console as soon as they are written to the console Console severity Logging file configuration Logging buffer size Logging history size Time stamps Synchronous logging Logging server Syslog server IP address Configuration change logger Server facility Server severity Default Setting Enabled. ...config Purpose Enter global configuration mode. Verify your entries. (Optional) Save your entries in the middle of command output. 30-4 Catalyst 3750 Switch Software Configuration Guide OL-8550-02 Disabling the logging process can slow down the switch because a process must be ...
... Table 30-3 on the console as soon as they are written to the console Console severity Logging file configuration Logging buffer size Logging history size Time stamps Synchronous logging Logging server Syslog server IP address Configuration change logger Server facility Server severity Default Setting Enabled. ...config Purpose Enter global configuration mode. Verify your entries. (Optional) Save your entries in the middle of command output. 30-4 Catalyst 3750 Switch Software Configuration Guide OL-8550-02 Disabling the logging process can slow down the switch because a process must be ...
Configuration Guide
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... to a UNIX syslog server host. This procedure is 4096 bytes. • (Optional) For min-file-size, specify the minimum logging file size. The default buffer size is 2048 bytes. • (Optional) For severity-level-number | type, specify either the logging severity ...OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 30-5 Chapter 30 Configuring System Message Logging Configuring System Message Logging The logging synchronous global configuration command also affects the display of messages to 7. Step 1 Step 2 Command configure terminal logging buffered [size] Step 3 ...
... to a UNIX syslog server host. This procedure is 4096 bytes. • (Optional) For min-file-size, specify the minimum logging file size. The default buffer size is 2048 bytes. • (Optional) For severity-level-number | type, specify either the logging severity ...OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 30-5 Chapter 30 Configuring System Message Logging Configuring System Message Logging The logging synchronous global configuration command also affects the display of messages to 7. Step 1 Step 2 Command configure terminal logging buffered [size] Step 3 ...
Configuration Guide
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...by placing packets with particular DSCPs or CoSs into certain queues, by allocating a large queue size or by the weights configured with both ingress queues and services them as a percentage by ... For configuration information, see the "Weighted Tail Drop" section on page 33-67. 33-16 Catalyst 3750 Switch Software Configuration Guide OL-8550-02 You use WTD to a threshold ID. You can ...and by using the show mls qos maps privileged EXEC command. The buffer allocation together with the bandwidth allocation control how much data can combine the commands described in the mls qos srr...
...by placing packets with particular DSCPs or CoSs into certain queues, by allocating a large queue size or by the weights configured with both ingress queues and services them as a percentage by ... For configuration information, see the "Weighted Tail Drop" section on page 33-67. 33-16 Catalyst 3750 Switch Software Configuration Guide OL-8550-02 You use WTD to a threshold ID. You can ...and by using the show mls qos maps privileged EXEC command. The buffer allocation together with the bandwidth allocation control how much data can combine the commands described in the mls qos srr...
Configuration Guide
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... DSCPs or CoSs into certain queues, by allocating a large queue size or by servicing the queue more information about how WTD works,...The buffer allocation together with lower priorities are serviced. Packet Modification A packet is enabled, in this stage; OL-8550-02 Catalyst ...buffered and sent before the other queues are dropped. All four queues participate in shared or shaped mode. For more frequently, and by using the show mls qos maps privileged EXEC command. You should change them only when you cannot modify it is possible that packets with the SRR weight ratios control...
... DSCPs or CoSs into certain queues, by allocating a large queue size or by servicing the queue more information about how WTD works,...The buffer allocation together with lower priorities are serviced. Packet Modification A packet is enabled, in this stage; OL-8550-02 Catalyst ...buffered and sent before the other queues are dropped. All four queues participate in shared or shaped mode. For more frequently, and by using the show mls qos maps privileged EXEC command. You should change them only when you cannot modify it is possible that packets with the SRR weight ratios control...
Configuration Guide
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...1 2, 3, 4, 5, 6, 7 Queue Weight (Bandwidth) 81 percent 19 percent Queue (Buffer) Size 67 percent 33 percent Table 33-4 shows the generated auto-QoS configuration for the ingress queues. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 33-21 VoIP = voice over IP STP BPDU Traffic 56 ... in Table 33-2. The switch configures ingress and egress queues on a port at the edge of a Cisco IP Phone. Table 33-2 Traffic Types, Packet Labels, and Queues VoIP1 Data VoIP Control Routing Protocol Traffic Traffic Traffic DSCP 46 24, 26 48 CoS 5 3 6 CoS-to-Ingress Queue Map...
...1 2, 3, 4, 5, 6, 7 Queue Weight (Bandwidth) 81 percent 19 percent Queue (Buffer) Size 67 percent 33 percent Table 33-4 shows the generated auto-QoS configuration for the ingress queues. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 33-21 VoIP = voice over IP STP BPDU Traffic 56 ... in Table 33-2. The switch configures ingress and egress queues on a port at the edge of a Cisco IP Phone. Table 33-2 Traffic Types, Packet Labels, and Queues VoIP1 Data VoIP Control Routing Protocol Traffic Traffic Traffic DSCP 46 24, 26 48 CoS 5 3 6 CoS-to-Ingress Queue Map...
Configuration Guide
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...) Description Automatically Generated Command The switch automatically maps DSCP values to an ingress queue and to a threshold ID. The switch also configures the bandwidth and buffer size for the ingress queues. Switch(config)# no mls qos srr-queue input dscp-map Switch(config)# mls qos srr-queue input dscp-map queue 1 threshold...(config)# mls qos srr-queue input threshold 1 8 16 Switch(config)# mls qos srr-queue input threshold 2 34 66 Switch(config)# mls qos srr-queue input buffers 67 33 OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 33-23
...) Description Automatically Generated Command The switch automatically maps DSCP values to an ingress queue and to a threshold ID. The switch also configures the bandwidth and buffer size for the ingress queues. Switch(config)# no mls qos srr-queue input dscp-map Switch(config)# mls qos srr-queue input dscp-map queue 1 threshold...(config)# mls qos srr-queue input threshold 1 8 16 Switch(config)# mls qos srr-queue input threshold 2 34 66 Switch(config)# mls qos srr-queue input buffers 67 33 OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 33-23
Configuration Guide
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... DSCP value received in the packet on a nonrouted port by using the mls qos trust dscp command. Switch(config-if)# mls qos trust device cisco-phone 33-24 Catalyst 3750 Switch Software Configuration Guide OL-8550-02 Switch(config)# mls qos queue-set output 1 threshold 1 138 138 92 138 Switch(config)# mls.... Configuring Auto-QoS Chapter 33 Configuring QoS Table 33-5 Generated Auto-QoS Configuration (continued) Description Automatically Generated Command The switch automatically configures the egress queue buffer sizes.
... DSCP value received in the packet on a nonrouted port by using the mls qos trust dscp command. Switch(config-if)# mls qos trust device cisco-phone 33-24 Catalyst 3750 Switch Software Configuration Guide OL-8550-02 Switch(config)# mls qos queue-set output 1 threshold 1 138 138 92 138 Switch(config)# mls.... Configuring Auto-QoS Chapter 33 Configuring QoS Table 33-5 Generated Auto-QoS Configuration (continued) Description Automatically Generated Command The switch automatically configures the egress queue buffer sizes.
Configuration Guide
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... configuration logging 2-5 described 1-5 editing features enabling and disabling 2-7 keystroke editing 2-7 wrapped lines 2-9 error messages 2-5 filtering command output 2-10 getting help 2-3 history changing the buffer size 2-6 described 2-6 disabling 2-7 recalling commands 2-6 managing clusters 6-16 no and default forms of commands 2-4 client mode, VTP 14-3 client processes, tracking 39-12 clock See ... group and HSRP group 39-11 automatic recovery 6-12 considerations 6-11 defined 6-2 requirements 6-3 virtual IP address 6-11 See also HSRP Catalyst 3750 Switch Software Configuration Guide IN-7
... configuration logging 2-5 described 1-5 editing features enabling and disabling 2-7 keystroke editing 2-7 wrapped lines 2-9 error messages 2-5 filtering command output 2-10 getting help 2-3 history changing the buffer size 2-6 described 2-6 disabling 2-7 recalling commands 2-6 managing clusters 6-16 no and default forms of commands 2-4 client mode, VTP 14-3 client processes, tracking 39-12 clock See ... group and HSRP group 39-11 automatic recovery 6-12 considerations 6-11 defined 6-2 requirements 6-3 virtual IP address 6-11 See also HSRP Catalyst 3750 Switch Software Configuration Guide IN-7
Configuration Guide
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... STP 18-22 help, for the command line 2-3 hierarchical policy maps 33-8 configuration guidelines 33-33 configuring 33-53 described 33-11 history changing the buffer size 2-6 described 2-6 disabling 2-7 recalling commands 2-6 history table, level and number of syslog messages 30-10 host names in clusters 6-13 host ports configuring 16-12 kinds... standby group considerations 6-11 command-switch redundancy 1-1, 1-6 configuring 39-4 default configuration 39-5 definition 39-1 guidelines 39-5 monitoring 39-11 object tracking 39-17 overview 39-1 Catalyst 3750 Switch Software Configuration Guide IN-17
... STP 18-22 help, for the command line 2-3 hierarchical policy maps 33-8 configuration guidelines 33-33 configuring 33-53 described 33-11 history changing the buffer size 2-6 described 2-6 disabling 2-7 recalling commands 2-6 history table, level and number of syslog messages 30-10 host names in clusters 6-13 host ports configuring 16-12 kinds... standby group considerations 6-11 command-switch redundancy 1-1, 1-6 configuring 39-4 default configuration 39-5 definition 39-1 guidelines 39-5 monitoring 39-11 object tracking 39-17 overview 39-1 Catalyst 3750 Switch Software Configuration Guide IN-17