Configuring System Information 219
For information on the fields, refer to the Details Advertise Information page above.
Table 6-45. LLDP Neighbors Information CLI Commands
The following is an example of the CLI commands:
Switch# show lldp neighbors
Defining SNMP Parameters
Simple Network Management Protocol (SNMP) provides a method for managing network devices.
Theswitch supports the following SNMP versions:
• SNMPv1 (version 1)
• SNMPv2 (version 2)
• SNMPv3 (version 3)
SNMP v1 and v2
The SNMP agents maintains a list of variables, which are used to manage the switch. The variables are
defined in the Management Information Base (MIB). The MIB presents the variables controlled by the
agent. The SNMP agent defines the MIB specification format, as well as the format used to access the
information over the network. Access rights to the SNMP agents are controlled by access strings.
SNMPv1 and v2 are enabled by default.
SNMP v3
SNMP v3 also applies access control and a new traps mechanism to SNMPv1 and SNMPv2 PDUs.
Inaddition, a User Security Model (USM) is defined for SNMPv3, which includes:
•
Authentication
— Provides data integrity and data origin authentication.
•
Privacy
— Protects against disclosure message content. Cipher Block-Chaining
(CBC) is used for
encryption. Either authentication is enabled on an SNMP message, or both authentication and privacy
are enabled on an SNMP message. However privacy cannot be enabled without authentication.
•
Timeliness
— Protects against message delay or message redundancy. The SNMP agent compares
incoming message to the message time information.
•
Key Management
— Defines key generation, key updates, and key use.
CLI Command Description
show lldp neighbors
interface Displays information about
neighboring devices discovered using
Link Layer Discovery Protocol (LLDP)
Port Device ID Port ID System Name Capabilities
3/e31 00:00:77:77:00:00 1/g3 0