Cisco SG500-28P Administration Guide

Administration: Discovery
Configuring LLDP
127 Cisco 500 Series Stackable Managed Switch Administration Guide Release 1.3
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The time interval between notifications is entered in the Topology Change
SNMP Notification Interval field in the LLDP Properties page. Define SNMP
Notification Recipients by using the SNMP > Notification Recipient v1,2
and/or SNMP > Notification Recipient v3 page.
• Available Optional TLVs—Select the information to be published by the
device by moving the TLV to the Selected Optional TLVs list. The available
TLVs contain the following information:
- Port Description—Information about the port, including manufacturer,
product name and hardware/software version.
- System Name—System's assigned name (in alpha-numeric format). The
value equals the sysName object.
- System Description—Description of the network entity (in alpha-
numeric format). This includes the system's name and versions of the
hardware, operating system, and networking software supported by the
device. The value equals the sysDescr object.
- System Capabilities—Primary functions of the device, and whether or
not these functions are enabled in the device. The capabilities are
indicated by two octets. Bits 0 through 7 indicate Other, Repeater, Bridge,
WLAN AP, Router, Telephone, DOCSIS cable device, and station
respectively. Bits 8 through 15 are reserved.
- 802.3 MAC-PHY—Duplex and bit rate capability and the current duplex
and bit rate settings of the sending device. It also indicates whether the
current settings are due to auto-negotiation or manual configuration.
- 802.3 Link Aggregation—Whether the link (associated with the port on
which the LLDP PDU is transmitted) can be aggregated. It also indicates
whether the link is currently aggregated, and if so, provides the
aggregated port identifier.
- 802.3 Maximum Frame—Maximum frame size capability of the MAC/
PHY implementation.
The following fields relate to the Management Address:
• Advertisement Mode—Select one of the following ways to advertise the IP
management address of the device:
- Auto Advertise—Specifies that the software would automatically
choose a management address to advertise from all the IP addresses of
the product. In case of multiple IP addresses the software chooses the

Cisco SG500-28P Specifications

General

Switching Capacity	56 Gbps
Forwarding Rate	41.67 Mpps
Flash Memory	32 MB
Operating Humidity	10% to 90% non-condensing
PoE	Yes
Layer	Layer 2 and Layer 3
Stackable	Yes
Power Supply	Internal
Management	Web-based GUI, CLI, SNMP
Jumbo Frame Support	Yes
VLANs	4096 VLANs
MAC Address Table Size	16K entries
Dimensions	440 x 44 x 350 mm
Operating Temperature	0°C to 45°C
Ports	28 (24 x 10/100/1000 PoE+ ports, 4 x 10/100/1000/SFP combo ports)