LLDP MIB :
lldpLocPortDesc OBJECT-TYPE
SYNTAX SnmpAdminString (SIZE(0..255))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The string value used to identify the IEEE 802 LAN station's port
description associated with the local system. If the local
agent supports IETF RFC 2863, lldpLocPortDesc object should
have the same value of ifDescr object."
REFERENCE
"IEEE Std 802.1AB-2005 9.5.5.2"
::= { lldpLocPortEntry 4 }

RFC2863 MIB:
ifDescr OBJECT-TYPE
SYNTAX DisplayString (SIZE (0..255))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A textual string containing information about the
interface. This string should include the name of the
manufacturer, the product name and the version of the
interface hardware/software."
::= { ifEntry 2 }