UMN:CLI User Manual
V5808
38
Spanning Tree Protocol (STP)
To prevent loop and preserve backup route in Layer 2 network, the V5808 supports
Spanning Tree Protocol (STP) defined in IEEE 802.1D. Between STP enabled switches, a
root bridge is automatically selected and the network remains in tree topology. However,
the recovery time in STP is very slow (about 30 seconds), Rapid Spanning Tree Protocol
(RSTP) is also provided. IEEE 802.1w defines the recovery time as 2 seconds. If there is
only one VLAN in the network, traditional STP works. However, in more than one VLAN
network, STP cannot work per VLAN. To avoid this problem, the V5808 supports Multiple
Spanning Tree Protocol (MSTP) IEEE 802.1s.
Link Aggregation (Trunking)
The V5808 aggregates several physical interfaces into one logical port (aggregate port).
Port trunk aggregates interfaces with the standard of same speed, same duplex mode,
and same VLAN ID. According to IEEE 802.3ad, the V5808 can configure maximum 8
aggregate ports and up to 6 trunk groups.
Link Aggregation Control Protocol (LACP)
The V5808 supports Link Aggregation Control Protocol (LACP), complying with IEEE
802.3ad, which aggregates multiple links of equipments to use more enlarged bandwidth.
System Management based on CLI
It is easy for users who administer system by using telnet or console port to configure the
functions for system operating through CLI. CLI is easy to configure the needed functions
after looking for available commands by help menu different with UNIX.
Broadcast Storm Control
Broadcast storm control is, when too much of broadcast packets are being transmitted to
network, a situation of network timeout because the packets occupy most of transmit
capacity. The V5808 supports broadcast and multicast storm control, which disuses
flooding packet, that exceed the limit during the time configured by user.
Profile-based Management
With profile function, each OLT can be configured and managed. By creating several
profiles to have some configurations, if an OLT is assigned to use an appropriate profile
of the profiles, the assigned profile will be automatically applied to the OLT. So the use of
profile provides easy and efficient manageability for the OLT conforming policies and
service environments of users.
Outband Management Interface
The V5808 can connect to equipments at remote place by assigning IP address to MGMT
interface. Since MGMT interface is operated regardless of status of service port, it is still
possible to configure and manage equipment at remote place even though problem such
as link disconnection is occurred.
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