Brocade Converged Enhanced Ethernet Administrator's Guide v6.1.2_cee (53-1001258-01, June 2009)
Table Of Contents
- Contents
- Figures
- Tables
- About This Document
- Introducing FCoE
- Using the CEE CLI
- In this chapter
- CEE CLI configuration guidelines and restrictions
- Using the CEE command line interface (CLI)
- CEE CLI RBAC permissions
- Accessing the CEE CLI through the console interface or through a Telnet session
- Accessing the CEE CLI from the Fabric OS shell
- Accessing CEE CLI command modes
- Using CEE CLI keyboard shortcuts
- Displaying CEE CLI commands and command syntax
- Using CEE CLI command completion
- CEE CLI command syntax conventions
- Using CEE CLI command output modifiers
- Configuring VLANs Using the CEE CLI
- In this chapter
- VLAN overview
- Ingress VLAN filtering
- VLAN configuration guidelines and restrictions
- Default VLAN configuration
- VLAN configuration procedures
- Enabling and disabling a CEE interface
- Configuring the MTU on a CEE interface
- Creating a VLAN interface
- Configuring a VLAN interface to forward FCoE traffic
- Configuring a CEE interface as a Layer 2 switch port
- Configuring a CEE interface as an access interface or a trunk interface
- Configuring VLAN classifier rules
- Configuring VLAN classifier groups
- Associating a VLAN classifier group to a CEE interface
- Clearing VLAN counter statistics
- Displaying VLAN information
- Configuring the MAC address table
- Configuring STP, RSTP, and MSTP using the CEE CLI
- In this chapter
- STP overview
- RSTP overview
- MSTP overview
- STP, RSTP, and MSTP configuration guidelines and restrictions
- Default STP, RSTP, and MSTP configuration
- STP, RSTP, and MSTP configuration procedures
- STP, RSTP, and MSTP-specific configuration procedures
- STP and RSTP-specific configuration procedures
- RSTP and MSTP-specific configuration procedures
- MSTP-specific configuration procedures
- 10-Gigabit Ethernet CEE interface-specific configuration
- Global STP, RSTP, and MSTP-related configuration procedures
- Clearing STP, RSTP, and MSTP-related information
- Displaying STP, RSTP, and MSTP-related information
- Configuring Link Aggregation using the CEE CLI
- Configuring LLDP using the CEE CLI
- Configuring ACLs using the CEE CLI
- In this chapter
- ACL overview
- Default ACL configuration
- ACL configuration guidelines and restrictions
- ACL configuration procedures
- Creating a standard MAC ACL and adding rules
- Creating an extended MAC ACL and adding rules
- Modifying a MAC ACL
- Removing a MAC ACL
- Reordering the sequence numbers in a MAC ACL
- Applying a MAC ACL to a CEE interface
- Applying a MAC ACL to a VLAN interface
- Clearing MAC ACL counters
- Displaying MAC ACL information
- Configuring QoS using the CEE CLI
- Configuring FCoE using the Fabric OS CLI
- Administering the switch
- Configuring RMON using the CEE CLI
- Index

Converged Enhanced Ethernet Administrator’s Guide 79
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Chapter
6Configuring LLDP using the CEE CLI
In this chapter
•LLDP overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
•Layer 2 topology mapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
•DCBX overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
•DCBX interaction with other vendor devices . . . . . . . . . . . . . . . . . . . . . . . . . 83
•LLDP configuration guidelines and restrictions. . . . . . . . . . . . . . . . . . . . . . . 84
•Default LLDP configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
•LLDP configuration procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
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 packet, 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.










