Siemens S223, S323 Spanning Tree Protocol STP, Link Aggregation Trunking, Broadcast Storm Control

User Manual	UMN:CLI
SURPASS hiD 6615 S223/S323 R1.5

DHCP

The hiD 6615 S223/S323 supports DHCP (Dynamic Host Control Protocol) Server that automatically assigns IP address to clients accessed to network. That means it has IP address pool, and operator can effectively utilize limited IP source by leasing temporary IP address. In layer 3 network, DHCP request packet can be sent to DHCP server via DHCP relay and Option 82 function.

Spanning Tree Protocol (STP)

To prevent loop and preserve backup route in layer 2 network, the hiD 6615 S223/S323 supports STP (802.1D). Between STP enabled switches, a root bridge is automatically selected and the network remains in tree topology. But the recovery time in STP is very slow (about 30 seconds), RSTP (Rapid Spanning Tree Protocol) 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 hiD 6615 S223/S323 supports Multiple Spanning Tree Protocol (MSTP).

Link Aggregation (Trunking)

The hiD 6615 S223/S323 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 hiD 6615 S223/S323 can configure maximum 8 aggregate ports and up to 12 trunk groups.

LACP

The hiD 6615 S223/S323 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 ca- pacity. The hiD 6615 S223/S323 supports broadcast and multicast storm control, which disuses flooding packet, that exceed the limit during the time configured by user.

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