H3C S5500-EI Series Operation Manual
Dldp configuration
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- Operation manual (1529 pages) ,
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Operation Manual - DLDP
H3C S5500-EI Series Ethernet Switches
Chapter 1 DLDP Configuration .................................................................................................... 1-1
1.1 Overview ............................................................................................................................ 1-1
1.1.1 DLDP Introduction ................................................................................................... 1-2
1.1.2 DLDP Fundamentals............................................................................................... 1-3
1.2 DLDP Configuration Task List ......................................................................................... 1-10
1.2.1 Enabling DLDP...................................................................................................... 1-10
1.2.2 Setting DLDP Mode .............................................................................................. 1-11
1.2.3 Setting the Interval for Sending Advertisement Packets....................................... 1-11
1.2.4 Setting the DelayDown Timer ............................................................................... 1-12
1.2.5 Setting the Port Shutdown Mode .......................................................................... 1-13
1.2.6 Configuring DLDP Authentication ......................................................................... 1-13
1.2.7 Resetting DLDP State ........................................................................................... 1-14
1.3 Displaying and Maintaining DLDP ................................................................................... 1-15
1.4 DLDP Configuration Example.......................................................................................... 1-15
1.4.1 DLDP Configuration Example ............................................................................... 1-15
1.5 Troubleshooting ............................................................................................................... 1-17
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Summary of Contents for H3C S5500-EI Series
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Page 1: Table Of Contents
Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Table of Contents Table of Contents Chapter 1 DLDP Configuration ....................1-1 1.1 Overview ..........................1-1 1.1.1 DLDP Introduction ....................1-2 1.1.2 DLDP Fundamentals....................1-3 1.2 DLDP Configuration Task List ..................1-10 1.2.1 Enabling DLDP...................... -
Page 2: Chapter 1 Dldp Configuration
Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration Chapter 1 DLDP Configuration When performing DLDP configuration, go to these sections for information you are interested in: Overview DLDP Configuration Task List Enabling DLDP Setting DLDP Mode... -
Page 3: Dldp Introduction
Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration Device A GE1/0/50 GE1/0/51 GE1/0/51 GE1/0/50 Device B Figure 1-1 Unidirectional fiber link: cross-connected fiber Device A GE1/0/50 GE1/0/51 GE1/0/50 GE1/0/51 Device B Figure 1-2 Unidirectional fiber link: fiber not connected or disconnected 1.1.1 DLDP Introduction... -
Page 4: Dldp Fundamentals
Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration connected correctly and if packets can be exchanged between the two devices. Note that DLDP is not implemented through auto-negotiation. 1.1.2 DLDP Fundamentals I. DLDP link states... - Page 5 Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration II. DLDP timers Table 1-2 DLDP timers DLDP timer Description Determines the Interval to send Advertisement packets with RSY tag, which defaults to 1 second. When a device transits to the active DLDP link state, it...
- Page 6 Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration DLDP timer Description In the enhanced mode, this timer is triggered if no packet is received from a neighbor when the entry aging timer expires. Enhanced timer is set to 10 seconds.
- Page 7 Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration Table 1-3 DLDP mode and neighbor entry aging Detecting a Removing the Triggering the neighbor after the DLDP neighbor entry Enhanced timer after corresponding mode immediately after the...
- Page 8 Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration IV. DLDP authentication mode You can prevent network attacks and illegal detect through DLDP authentication. Three DLDP authentication modes exist, as described below. Non-authentication. In this mode, the sending side sets the Authentication field and the Authentication type field of DLDP packets to 0.
- Page 9 Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration The packet is dropped if the setting of the interval for sending Advertisement packets it carries conflicts with the corresponding local setting. Other processes. Table 1-5 Procedures for processing different types of DLDP packets...
- Page 10 Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration Packet type Processing procedure Check to see if If not, no process is performed. the local port is RecoverProbe in Disable or packet If yes, returns RecoverEcho packets.
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Page 11: Dldp Configuration Task List
Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration DLDP neighbor Description state A neighbor is in this state when the link connecting it is detected to be a unidirectional link. After a device transits to this state, the... -
Page 12: Setting Dldp Mode
Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration To do… Use the command… Remarks Enter system view system-view — Required Enable DLDP dldp enable globally Globally disabled by default Enter Either of the two is required. -
Page 13: Setting The Delaydown Timer
Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration Follow these steps to set the interval for sending Advertisement packets: To do… Use the command… Remarks Enter system view system-view — Optional Set the interval for... -
Page 14: Setting The Port Shutdown Mode
Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration 1.2.5 Setting the Port Shutdown Mode On detecting a unidirectional link, the ports can be shut down in one of the following two modes. Manual mode. This mode applies to networks with low performance, where normal links may be treated as unidirectional links. -
Page 15: Resetting Dldp State
Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration Caution: To enable DLDP to operate properly, make sure the DLDP authentication modes and the passwords of the both sides of a link are the same. 1.2.7 Resetting DLDP State After a unidirectional link is detected, DLDP shuts down the corresponding port. -
Page 16: Displaying And Maintaining Dldp
Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration To do… Use the command… Remarks Enter system view system-view — Enter Either is required. interface interface-type Ethernet Enter The configuration interface-number port view Ethernet performed in Ethernet port... - Page 17 Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration II. Network diagram Device A GE1/0/50 GE1/0/51 GE1/0/51 GE1/0/50 Device B Figure 1-4 Network diagram for DLDP configuration III. Configuration procedure Configuration on Device A # Enable DLDP on GigabitEthernet1/0/50 and GigabitEthernet 1/0/51.
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Page 18: Troubleshooting
Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration DLDP interval : 6s DLDP work-mode : enhance DLDP authentication-mode : none DLDP unidirectional-shutdown : auto DLDP delaydown-timer : 2s The number of enabled ports is 2. - Page 19 Operation Manual – DLDP H3C S5500-EI Series Ethernet Switches Chapter 1 DLDP Configuration DLDP authentication modes/passwords on Device A and Device B are not the same. Solution: Make sure the interval for sending Advertisement packets, the authentication mode, and the password on Device A and Device B are the same.