S Layer 2 Managed Switch User Manual
陈泽科技有限公司
www.stephen-tele.com
28
Management agent:
Management agent is the managed switch, e.g.
S.
Management agent must have management information store
for management agent visiting. Management information store is organized as ASN.1 mode. Below are some MIB that
S
support:
RFC1213 RFC1213-MIB MIB II All groups except egp and transmission
RFC1493 BRIDGE-MIB dot1dBase and dot1dStp groups
RFC 1757 RMON-MIB RMON-Lite(4 RMON1 groups)1-statistics, 2-history, 3-alarm, and 9-event.
RFC 2674Q 802.1q VLAN
RFC 1907 SNMPv2-MIB Conformance groups 5, 6, 7, 8, 9 also used for SNMPv3
RFC 2233 IF-MIB interface group extension for SMIv2CG=4, 5, 6, 7, 10, 11, 13.
Network management protocol:
Management station visit management agent through network management protocol. There are several management modes
while management station visits management entity: Get-Request, Get-Next Request, Set-Request. The information that
management entity returns to management station includes Get-Response and Trap. Get-Response is the response of
management station Get-Request, Get-Next Request while Trap is some messages of management entity sends to
management entity. These messages include: port’s Link up, Link down, cold boot, hot boot of switch, authentication failure
etc. Below is the connection figure between management station and management entity
S
:
4.8.2 RMON protocol
RMON (Remote Network Monitoring) takes effect on defining standard network monitoring function and interface in order to
enable communication between management terminal base on SNMP and remote monitor. RMON offers two control
features: configuration and operation recalling.
Configuration refers to configure remote monitor to collect wanted data through configuring manage terminal some
appropriate parameters. Operation recall refers to SNMP send a command through SET operation. These commands include
add, delete, modify and read.
S
supports 1, 2, 3, 9 group RMON MIB. They are statistics group, history group, alarm
group and event group.
4.9 802.1X authentication
S
’s 802.1X authentication is base on port. 802.1X authentication refer to authentication, authorization, billing
function that provide by switch. It provides a frame that used to configure authentication billing security function.
Authentication refers to identify if user can acquire access right. Billing refers to record situation of how users utilize network
resources and how to calculate bill to user who is using the network resources.
S
supports standard IEEE 802.1X authentication. It can associate authentication and billing with standard RADIUS
sever and 802.1X client.
Below is a network topology that conducts 802.1X authentication through
S
.
