Lldp overview | Brocade Communications Systems 53-1001761-01

	Chapter
Configuring LLDP using the CEE CLI	7

In this chapter

•LLDP overview	73
•Layer 2 topology mapping	74
•DCBX overview	76
•DCBX interaction with other vendor devices	77
•LLDP configuration guidelines and restrictions	77
•Default LLDP configuration	78
•LLDP configuration and management	78

LLDP overview

The IEEE 802.1AB Link Layer Discovery Protocol (LLDP) enhances the ability of network management tools to discover and maintain accurate network topologies and simplify LAN troubleshooting in multi-vendor environments. To efficiently and effectively operate the various devices in a LAN you must ensure the correct and valid configuration of the protocols and applications that are enabled on these devices. With Layer 2 networks expanding dramatically, it is difficult for a network administrator to statically monitor and configure each device in the network.

Using LLDP, network devices such as routers and switches advertise information about themselves to other network devices and store the information they discover. Details such as device configuration, device capabilities, and device identification are advertised. LLDP defines the following:

•A common set of advertisement messages.

•A protocol for transmitting the advertisements.

•A method for storing the information contained in received advertisements.

NOTE

LLDP runs over the data-link layer which allows two devices running different network layer protocols to learn about each other.

LLDP information is transmitted periodically and stored for a finite period. Every time a device receives an LLDP advertisement frame, it stores the information and initializes a timer. If the timer reaches the time to live (TTL) value, the LLDP device deletes the stored information ensuring that only valid and current LLDP information is stored in network devices and is available to network management systems.

Converged Enhanced Ethernet Administrator’s Guide	73
53-1001761-01

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Brocade Communications Systems 53-1001761-01 manual Configuring Lldp using the CEE CLI, Lldp overview

Contents

Converged Enhanced Ethernet Brocade Communications Systems, Incorporated Contents This chapter Vlan overview Chapter Using the CEE CLI Chapter Configuring Link Aggregation using the CEE CLI This chapter QoS overview Chapter Configuring Lldp using the CEE CLI Active Igmp snooping This chapter802.1x protocol overview About Igmp CEE configuration management guidelines and restrictions Chapter FCoE configuration using the Fabric OS CLI Index WRR schedule two queues Strict priority and Weighted Round Robin schedulerPage Tables Page How this document is organized About This DocumentThis chapter Supported hardware and software Text formatting Command syntax conventionsWhat’s new in this document Document conventions Repeat the previous element, for example membermember Key termsOptional element Enclosed in angled brackets Other industry resources Additional informationGetting technical help Brocade resources FT00X0054E9 Serial number label is located as follows Document feedback Xxi Page FCoE overview Introducing FCoEFCoE terminology FCoE hardware Layer 2 Ethernet overview Layer 2 Ethernet overviewLayer 2 forwarding Vlan tagging Frame classification incoming Loop-free network environment Congestion control and queuing Access control FIP discovery FCoE Initialization ProtocolTrunking Flow ControlPage FCoE logout FCoE loginFIP logout FC zoning LogincfgName server FCoE queuing Management Tools Using the CEE CLICEE Command Line Interface CEE CLI Rbac permissions Saving your configuration changesSaving configuration changes with the copy command Saving configuration changes with the write command CEE Command Line Interface Accessing the CEE CLI through the console or TelnetAccessing the CEE CLI from the Fabric OS shell CEE CLI command modes Interface port-channel Lists CEE CLI keyboard shortcuts CEE Command Line Interface CEE CLI command modesCEE CLI keyboard shortcuts Displaying CEE CLI commands and command syntax Using the do command as a shortcut CEE CLI command output modifiers CEE CLI command completion CEE Command Line Interface SAN Integration Standard CEE Integrations and ConfigurationsOverview of standard CEE integrations CEE and LAN integration Integrating a Brocade 8000 switch on a SAN CEE and LAN integration About CEE map attributes Creating the CEE map Configuring Dcbx Activate the protocol Configuring Spanning Tree ProtocolConfiguring Vlan Membership Example of creating Vlan rules and classifier groups Configuring the CEE Interfaces Example of setting the map name to srvgroup Ethernet configuration for the CNA Server connections to the Brocade 8000 switchMinimum CEE configuration to allow FCoE traffic flow Fibre Channel configuration for the CNA Switchconfig#interface tengigabitethernet 0/0 Ingress Vlan filtering Configuring VLANs Using the CEE CLIVlan overview Displays the frame processing logic for an incoming frame Default Vlan configuration Vlan configuration guidelines and restrictions To disable the CEE interface Vlan configuration and managementConfiguring the MTU on an interface port Vlan configuration and management Disabling STP on a Vlan Creating a Vlan interfaceEnabling STP on a Vlan Configuring an interface port as an access interface Configuring a Vlan interface to forward FCoE trafficConfiguring an interface port as a Layer 2 switch port Disabling a Vlan on a trunk interface Configuring an interface port as a trunk interfaceEnter the no shutdown command to enable the CEE interface Disabling a Vlan on a converged interface Configuring protocol-based Vlan classifier rulesConfiguring an interface port as a converged interface Deleting a Vlan classifier rule Configuring a Vlan classifier ruleConfiguring MAC address-based Vlan classifier rules Displaying Vlan information Creating a Vlan classifier group and adding rulesActivating a Vlan classifier group with an interface port Clearing Vlan counter statistics Adding static addresses to the MAC address table Configuring the MAC address tableConfiguring the MAC address table Specifying or disabling the aging time for MAC addresses Configuring the MAC address table STP overview Configuring STP, RSTP, and Mstp using the CEE CLI Configuring STP on Brocade FCoE hardware Is the interface learning MAC addresses? Rstp overview Configuring Rstp on Brocade FCoE hardware For details, see Specifying the port priority on Mstp overview Configuring Mstp on Brocade FCoE hardware Switchconf-mstp#instance 1 priority Default STP, RSTP, and Mstp configuration Disabling STP, RSTP, or Mstp STP, RSTP, and Mstp configuration and managementSTP, RSTP, and Mstp configuration and management Enabling STP, RSTP, or Mstp Specifying the bridge priority Specifying the bridge forward delaySpecify the bridge forward delay Specifying the bridge maximum aging time Enabling the error disable timeout timerSpecifying the error disable timeout interval Enable the error disable timeout timer Specify the port-channel path cost Specifying the port-channel path costSpecifying the bridge hello time STP and Rstp Specifying the transmit hold count Rstp and Mstp Map a Vlan to an Mstp instance Enabling Cisco interoperability MstpDisabling Cisco interoperability Mstp Mapping a Vlan to an Mstp instance Specifying a name for an Mstp region Specifying a revision number for an Mstp configurationEnter the region command to assign a name to an Mstp region Specifying the maximum number of hops for a Bpdu Mstp Clearing spanning tree-detected protocols Flushing MAC addresses Rstp and MstpClearing spanning tree counters Enabling automatic edge detection Configuring STP, RSTP, or Mstp on CEE interface portsConfiguring the path cost Displaying STP, RSTP, and MSTP-related information Enabling the guard root Enabling a port interface as an edge port Specifying restrictions for an Mstp instance Specifying the Mstp hello time Specifying the port priority Specifying a link typeEnabling port fast STP Enabling spanning tree Restricting the port from becoming a root portRestricting the topology change notification Disabling spanning tree Configuring STP, RSTP, or Mstp on CEE interface ports Link aggregation overview Configuring Link Aggregation using the CEE CLILink Aggregation Group configuration Converged Enhanced Ethernet Administrator’s Guide Data Center Core Brocade-proprietary aggregation Link Aggregation Control ProtocolDynamic link aggregation Static link aggregation Lacp configuration guidelines and restrictions Lacp configuration guidelines and restrictionsDefault Lacp configuration Lacp configuration and management Clearing Lacp counter statistics on a LAG Configuring the Lacp system priorityConfiguring the Lacp timeout period on a CEE interface Displaying Lacp information Lacp troubleshooting tipsClearing Lacp counter statistics on all LAG groups Deskew calculation failed for link link-name Lldp overview Configuring Lldp using the CEE CLI Layer 2 topology mapping Page Dcbx overview Dcbx overviewEnhanced Transmission Selection ETS Dcbx interaction with other vendor devices Lldp configuration guidelines and restrictionsDcbx interaction with other vendor devices Priority Flow Control PFC Default Lldp configuration Default Lldp configurationLldp configuration and management Disabling and resetting Lldp globally Specifying a user description for Lldp Configuring Lldp global command optionsSpecifying a system name for the Brocade FCoE hardware Advertising the optional Lldp TLVs Configuring the transmit frequency of Lldp framesConfiguring the hold time for receiving devices Configure the FCoE priority bits Configuring the advertisement of Lldp Dcbx -related TLVsConfiguring FCoE priority bits Advertise the Lldp DCBX-related TLVs using these commands Configuring Lldp profiles Clear Lldp statistics Configuring Lldp interface-level command optionsClearing LLDP-related information Apply an Lldp profile to the interface Display Lldp neighbor-related information Displaying LLDP-related informationDisplay Lldp general information Display Lldp interface-related information ACL overview Configuring ACLs using the CEE CLI Default ACL configuration VLANs Default ACL configurationACL configuration guidelines and restrictions ACL configuration and management Modifying MAC ACL rules Creating an extended MAC ACL and adding rules Reordering the sequence numbers in a MAC ACL Enter the no seq command to delete the existing ruleRemoving a MAC ACL Applying a MAC ACL to a Vlan interface Applying a MAC ACL to a CEE interface ACL configuration and management QoS overview Configuring QoS using the CEE CLI User-priority mapping Default user-priority mappings for untrusted interfacesRewriting Queueing Incoming CoS User Priority Configuring the QoS trust mode Set the interface mode to ‘3’ Configuring user-priority mappingsSet the interface mode to ‘trust’ Exit the configuration mode and return to Exec mode Queueing Traffic class mappingCreating a CoS-to-CoS mutation QoS map Applying a CoS-to-CoS mutation QoS map Multicast traffic Unicast traffic Activate the CoS-to-Traffic-Class mapping by name Mapping CoS-to-Traffic-ClassActivating a mapping CoS-to-Traffic-Class Congestion control Congestion controlTail drop Verifying a mapping CoS-to-Traffic-Class Changing the Tail Drop threshold Enabling Ethernet Pause Ethernet pause Enabling an Ethernet PFC Enable an Ethernet PFC on the interfaceMulticast rate limiting Ethernet Priority Flow Control Creating a receive queue multicast rate-limit SchedulingStrict priority scheduling Scheduling Deficit weighted round robin schedulingTraffic class scheduling policy Scheduling the QoS queue Scheduling Supported scheduling configurations Scheduling the QoS multicast queue Multicast queue scheduling Converged Enhanced Ethernet map configuration Define the CEE map for Pgid Creating a CEE mapDefining a priority group table Create a CEE map. In this example, the name ‘test’ is used Define the map Defining a priority-table map Switchconfig-ceemap#exit Verify the CEE map provisioning for a specified name Applying a CEE provisioning map to an interfaceVerifying the CEE maps 802.1x protocol overview Configuring 802.1x Port Authentication802.1x configuration guidelines and restrictions Configuring 802.1x on specific interface ports 802.1x authentication configuration tasksInterface-specific administrative tasks for Configure authentication Between the switch and CNA or NIC Configure reauthentication for the interface port Configuring 802.1x timeouts on specific interface portsConfigure the timeout interval Enable 802.1x authentication for the interface port Disabling 802.1x on specific interface ports Interface-specific administrative tasks for Active Igmp snooping Configuring IgmpAbout Igmp Multicast routing Configuring IgmpConfiguring Igmp Configure a Vlan port member to be a multi-router interface Monitoring Igmp Configuring Igmp snooping querierConfiguring Igmp snooping querier Switch#show ip igmp groups Configuring Rmon settings Configuring Rmon using the CEE CLIRmon configuration and management Default Rmon configuration Configuring Rmon Ethernet group statistics collection Configuring Rmon events Switchconf-if-te-0/1#exit Rmon configuration and management FCoE configuration guidelines and restrictions FCoE configuration using the Fabric OS CLI Managing and displaying the FCoE configuration Managing and displaying the FCoE configurationConfiguring Fcmap values for a Vlan Configuring FIP multicast advertisement intervals Enabling or disabling FCoE login configuration management Managing and displaying the FCoE login configurationClearing logins Displaying FCoE configuration-related information Cleaning up login groups and VNport mappings Displaying or aborting the current configuration transaction Creating an FCoE login group Creating and managing the FCoE login group configurationDisplaying the FCoE login configuration Saving the current FCoE configuration Perform the following task to delete an FCoE login group Modifying the FCoE login group device listDeleting an FCoE login group Perform the following task to rename an FCoE login group Renaming an FCoE login group Creating and managing the FCoE login group configuration CEE configuration management tasks CEE configuration managementCEE configuration management guidelines and restrictions Erasing the startup configuration file Display the running configuration fileSaving the running configuration file Loading the startup configuration file Archive a startup configuration from Flash Restore an archived running configuration fileArchiving the startup configuration file Restore an archived startup configuration file Lists the common CEE configuration management commands Flash file management commandsCEE configuration management commands Flash file management commands Switch#erase flash Debugging and logging commands Debugging and logging commands Index Symbols Numerics Dcbx FIP Lldp Radius Vlan