User manual AIRLIVE SNMP-GSH2416

[. . . ] SNMP-GSH2416 8+16 Pure Gigabit SNMP Managed Switch Table of Contents CAUTION-------------------------------------------------------------------------------------- IV ELECTRONIC EMISSION NOTICES --------------------------------------------------------- IV CHAPTER 1. INTRODUCTION--------------------------------------------------------- 2 1-1. OVERVIEW OF SNMP-GSH2416 SNMP MANAGED GIGABIT SWITCH ------- 2 1-2. CHECKLIST ----------------------------------------------------------------------------- 4 1-3. [. . . ] If the former is the case, then the packets with tagged or untagged will be processed. If the later is the case, only the packets carrying VLAN tag will be processed, the rest packets will be discarded. Note: If Rule 1 is enabled and port 1, for example, receives an untagged packet, the switch will apply the PVID of port 1 to tag this packet, the packet then will be forwarded. But if the PVID of port 1 is 100 and port 1 is not member of VLAN 100, the packet will be dropped. 87 AirLive SNMP-GSH 2416 User's Manual Role: This is an egress rule of the port. Here you can choose Access, Trunk or Hybrid. Trunk means the outgoing packets must carry VLAN tag header. Access means the outgoing packets carry no VLAN tag header. If packets have double VLAN tags, one will be dropped and the other will still be left. As to Hybrid, it is similar to Trunk, and both of them will tagout. When the port is set to Hybrid, its packets will be untagged out if the VID of the outgoing packets with tag is the same as the one in the field of Untag VID of this port. It works only when Role is set to Hybrid. Fig. 3-37 88 AirLive SNMP-GSH2416 User's Manual 3-11. MAC Table MAC Table Configuration gathers many functions, including MAC Table Information, MAC Table Maintenance, Static Forward, Static Filter and MAC Alias, which cannot be categorized to some function type. Function name: MAC Table Information Function Description: Display the static or dynamic learning MAC entry and the state for the selected port. Parameter description: Port: Select the port you would like to inquire. Search: Set up the MAC entry you would like to inquire. MAC: Display the MAC address of one entry you selected from the searched MAC entries table. Alias: Set up the Alias for the selected MAC entry. Set Alias: Save the Alias of MAC entry you set up. Search: Find the entry that meets your setup. Previous Page: Move to the previous page. MAC Address: The MAC address of the searched entry. 89 AirLive SNMP-GSH 2416 User's Manual Port: The port that exists in the searched MAC Entry. State: Display the method that this MAC Entry is built. [. . . ] Supports Head of Line (HOL) blocking prevention. Auto-aging with programmable inter-age time. Supports 802. 1p Class of Service with 2-level priority queuing. Supports port sniffer function Programmable maximum Ethernet frame length of range from 1518 to 9216 bytes jumbo frame. [. . . ]