User manual AIRLIVE SNMP-24MGB

[. . . ] SNMP-24MGB 24+8 Combo Pure Gigabit SNMP Managed Switch User's Manual Copyright and Disclaimer Copyright & Disclaimer No part of this publication may be reproduced in any form or by any means, whether electronic, mechanical, photocopying, or recording without the written consent of OvisLink Corp. has made the best effort to ensure the accuracy of the information in this user's guide. However, we are not liable for the inaccuracies or errors in this guide. All information is subject to change without notice All Trademarks are properties of their respective holders. AirLive SNMP-24MGB User's Manual Table of Contents Table of Contents 1. [. . . ] The benefit of using LACP is that a port makes an agreement with its peer port before it becomes a ready member of a "trunk group" (also called aggregator). The switch LACP does not support the followings: Link Aggregation across switches Aggregation with non-IEEE 802. 3 MAC link Operating in half-duplex mode Aggregate the ports with different data rates Static Trunk: Ports using Static Trunk as their trunk method can choose their unique Static 139 AirLive SNMP-24MGB User's Manual 4. Web Management in SNMP-24MGB GroupID (also 1~8, this Static groupID can be the same with another LACP groupID) to form a logic "trunked port". The benefit of using Static Trunk method is that a port can immediately become a member of a trunk group without any handshaking with its peer port. This is also a disadvantage because the peer ports of your static trunk group may not know that they should be aggregate together to form a "logic trunked port". Please also note that low speed links will stay in "not ready" state when using static trunk to aggregate with high speed links. As to system restrictions about the port aggregation function on the switch, In the management point of view, the switch supports maximum 8 trunk groups for LACP and additional 8 trunk groups for Static Trunk. But in the system capability view, only 8 "real trunked" groups are supported. An LACP trunk group with more than one ready member-port is a "real trunked" group. An LACP trunk group with only one or less than one ready member-port is not a "real trunked" group. Please note that some decisions will automatically be made by the system while you are configuring your trunking ports. Some configuration examples are listed below: (1) 12 ports have already used Static Trunk Group ID 1, the 13th port willing to use the same Static Trunk Group ID will be automatically set to use the "None" trunking method and its Group ID will turn to 0. (2) 14 ports all use LACP Trunk Group ID 1 at most 12 ports can aggregate together and transit into the ready state. (3) A port using the "None" trunking method or Group ID 0 will be automatically set to use the "None" trunking method with Group ID 0. 4. 12. 1 Trunking Port Setting/Port Function name: Trunk Port Setting/Status Function description: Port setting/status is used to configure the trunk property of each and every port in the switch system. 140 AirLive SNMP-24MGB v2 User's Manual 4. Web Management in SNMP-24MGB Parameter description: Port: Port Number: 1-24 Method: This determines the method a port uses to aggregate with other ports. None: A port does not want to aggregate with any other port should choose this default setting. LACP: A port use LACP as its trunk method to get aggregated with other ports also using LACP. Static: A port use Static Trunk as its trunk method to get aggregated with other ports also using Static Trunk. Group: Ports choosing the same trunking method other than "None" must be assigned a unique Group number (i. e. Group ID, valid value is from 1 to 8) in order to declare that they wish to aggregate with each other. 141 AirLive SNMP-24MGB User's Manual 4. Web Management in SNMP-24MGB Active LACP: This field is only referenced when a port's trunking method is LACP. Active: An Active LACP port begins to send LACPDU to its link partner right after the LACP protocol entity started to take control of this port. [. . . ] A standard protocol for sending files between computer over a TCP/IP network and the internet. IGMP Snooping Internet Group Management Protocol. It is a Layer 3 protocol to report IP multicast memberships to neighboring multicast switches and routers. IGMP Snooping is a feature that allows an Ethernet Switch to "listen in" on the IGMP conversation between hosts and routers. When IGMP snooping is enabled in a switch, it prevent hosts on a local network from receiving traffic for a multicast group they have not explicitly joined. [. . . ]