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...Parameters Chapter 2 Configuring Basic Interface Parameters Send document comments to nexus7k-docfeedback@cisco.com UDLD Overview The Cisco-proprietary Unidirectional Link Detection (UDLD) protocol allows devices that are connected through fiber-optic or copper (for example, Category 5 cabling) Ethernet cables to monitor... whether those fibers are echoed back within a specific time frame and they lack a specific acknowledgment (echo), the link is flagged as autonegotiation is not received by the neighbor but traffic transmitted from device A on the port. The Cisco Nexus 7000 Series...
...Parameters Chapter 2 Configuring Basic Interface Parameters Send document comments to nexus7k-docfeedback@cisco.com UDLD Overview The Cisco-proprietary Unidirectional Link Detection (UDLD) protocol allows devices that are connected through fiber-optic or copper (for example, Category 5 cabling) Ethernet cables to monitor... whether those fibers are echoed back within a specific time frame and they lack a specific acknowledgment (echo), the link is flagged as autonegotiation is not received by the neighbor but traffic transmitted from device A on the port. The Cisco Nexus 7000 Series...
Configuration Guide
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... by default. If one of the remote ports is being discarded. Table 2-4 UDLD Default Configuration Feature UDLD global enable state UDLD per-port enable state for fiber-optic media UDLD per-port enable state for the device and its port, see the "Configuring the UDLD Mode" ...has a UDLD neighbor relationship established stops receiving UDLD frame, UDLD tries to nexus7k-docfeedback@cisco.com Default UDLD Configuration Table 2-4 shows the default UDLD configuration. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 2-9 UDLD Aggressive and Nonaggressive...
... by default. If one of the remote ports is being discarded. Table 2-4 UDLD Default Configuration Feature UDLD global enable state UDLD per-port enable state for fiber-optic media UDLD per-port enable state for the device and its port, see the "Configuring the UDLD Mode" ...has a UDLD neighbor relationship established stops receiving UDLD frame, UDLD tries to nexus7k-docfeedback@cisco.com Default UDLD Configuration Table 2-4 shows the default UDLD configuration. OL-23435-03 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x 2-9 UDLD Aggressive and Nonaggressive...
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... Send document comments to nexus7k-docfeedback@cisco.com Guidelines and Limitations Basic interface parameters have the following configuration guidelines and limitations: • Fiber-optic Ethernet ports must configure the connecting port to match. Note The device cannot automatically negotiate the Ethernet port speed and duplex mode if the connecting port is enabled or desired, set the...
... Send document comments to nexus7k-docfeedback@cisco.com Guidelines and Limitations Basic interface parameters have the following configuration guidelines and limitations: • Fiber-optic Ethernet ports must configure the connecting port to match. Note The device cannot automatically negotiate the Ethernet port speed and duplex mode if the connecting port is enabled or desired, set the...
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...page 2-26 • Configuring the Interface Speed and Duplex Mode, page 2-28 • Configuring the Flow Control, page 2-30 2-14 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x OL-23435-03 Default Settings Chapter 2 Configuring Basic Interface Parameters Send document comments to... Throughput delay 100 microseconds Administrative status Shutdown MTU 1500 bytes UDLD global Globally disabled UDLD per-port enable state for fiber-optic media Enabled on all Ethernet fiber-optic LAN ports UDLD per-port enable state for the basic interface parameters.
...page 2-26 • Configuring the Interface Speed and Duplex Mode, page 2-28 • Configuring the Flow Control, page 2-30 2-14 Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x OL-23435-03 Default Settings Chapter 2 Configuring Basic Interface Parameters Send document comments to... Throughput delay 100 microseconds Administrative status Shutdown MTU 1500 bytes UDLD global Globally disabled UDLD per-port enable state for fiber-optic media Enabled on all Ethernet fiber-optic LAN ports UDLD per-port enable state for the basic interface parameters.
Configuration Guide
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... Default setting Enable UDLD command Disable UDLD command Fiber port Enabled no udld disable udld disable Copper or Non-fiber port Disabled udld enable no feature udld 3. udld message-time seconds 4. Chapter 2 Configuring Basic Interface Parameters Configuring the Basic Interface Parameters Send document comments to nexus7k-docfeedback@cisco.com Configuring the UDLD Mode You can...
... Default setting Enable UDLD command Disable UDLD command Fiber port Enabled no udld disable udld disable Copper or Non-fiber port Disabled udld enable no feature udld 3. udld message-time seconds 4. Chapter 2 Configuring Basic Interface Parameters Configuring the Basic Interface Parameters Send document comments to nexus7k-docfeedback@cisco.com Configuring the UDLD Mode You can...
Configuration Guide
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... Specifies UDLD mode to configure, and enters interface configuration mode. (Optional) Enables UDLD on the specified copper port or disables UDLD on the specified fiber port. See Table 2-7 for the device. (Optional) Specifies the interval between sending UDLD messages. the command is ...docfeedback@cisco.com DETAILED STEPS Step 1 Command configure terminal Step 2 Example: switch# configure terminal switch(config)# feature udld Example: switch(config)# feature udld switch(config)# no feature udld Step 3 Example: switch(config)# no udld disable. To enable UDLD on fiber ports, the...
... Specifies UDLD mode to configure, and enters interface configuration mode. (Optional) Enables UDLD on the specified copper port or disables UDLD on the specified fiber port. See Table 2-7 for the device. (Optional) Specifies the interval between sending UDLD messages. the command is ...docfeedback@cisco.com DETAILED STEPS Step 1 Command configure terminal Step 2 Example: switch# configure terminal switch(config)# feature udld Example: switch(config)# feature udld switch(config)# no feature udld Step 3 Example: switch(config)# no udld disable. To enable UDLD on fiber ports, the...
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... Configuring Basic Interface Parameters Configuring the Basic Interface Parameters Send document comments to nexus7k-docfeedback@cisco.com Command Step 8 exit Step 9 Example: switch(config-if-range)# exit switch(...30 switch(config)# This example shows how to enable the aggressive UDLD mode for fiber interfaces: switch# configure terminal switch(config)# feature udld switch(config)# udld aggressive...udld enable switch(config-if-range)# This example shows how to disable UDLD for Ethernet port 3/1: switch# configure terminal switch(config)# interface ethernet 3/1 switch(config-if-range)# no...
... Configuring Basic Interface Parameters Configuring the Basic Interface Parameters Send document comments to nexus7k-docfeedback@cisco.com Command Step 8 exit Step 9 Example: switch(config-if-range)# exit switch(...30 switch(config)# This example shows how to enable the aggressive UDLD mode for fiber interfaces: switch# configure terminal switch(config)# feature udld switch(config)# udld aggressive...udld enable switch(config-if-range)# This example shows how to disable UDLD for Ethernet port 3/1: switch# configure terminal switch(config)# interface ethernet 3/1 switch(config-if-range)# no...
