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. Learning: Indicates that the port is in learning mode. The port cannot forward traffic, however it can learn new MAC addresses. . Forwarding: Indicates that the port is in forwarding mode. The port can forward traffic and learn new MAC addresses. . Discarding: Indicates that the port is in discarding mode. The port is listening to BPDUs, and discards any other frames it receives. Displays the port role assigned by the STP algorithm to provide to STP paths. The possible field values are: . Disable: Indicates that the port or LAG is currently disabled on the port . Designated: The port or LAG through which the designated switch is attached to Port Role the LAN. . Alternate: Provides an alternate path to the root switch from the root interface. . Backup: With the designated port being blocked, the backup port becomes the new designated port fast and begins to forward data seamlessly. . Root: Provides the lowest cost path to forward packets to the root switch. Speed Indicates the speed at which the port is operating. Indicates the port contribution to the root path cost. The path cost is adjusted to a Path Cost higher or lower value, and is used to forward traffic when a path is re-routed. Indicates the priority value of the port. The priority value influences the port choice Priority when a bridge has two ports connected in a loop. The priority range is between 0-240. Indicates whether a Point-to-Point link is established, or if the switch is permitted to establish a Point-to-Point link. The possible field values are: . Auto: Enables the switch to establish automatically point-to-point link. Link Type . Point to Point: Indicates if a point-to-point link is currently established on the port. Ports set to Full Duplex modes are considered Point-to-Point port links. . Shared: Enables the switch to establish a shared link. Designated Bridge ID Indicates the bridge priority and the MAC Address of the designated bridge. Designated Port ID Indicates the selected port priority and interface. 51 Item Description ption Indicates the cost of the port participating in the STP topology. Ports with a lower cost Designated Cost are less likely to be blocked if STP detects loops. Indicates the number of times the port has changed from Forwarding state to Blocking Forward Transitions state. Configuring IGMP Snooping This section contains information for configuring IGMP Snooping. When IGMP Snooping is enabled, all IGMP packets are forwarded to the CPU. The CPU analyzes the incoming packets and determines: . Which ports want to join which Multicast groups. . Which ports have Multicast routers generating IGMP queries. . Which routing protocols are forwarding packets and Multicast traffic. Ports requesting to join a specific Multicast group issue an IGMP report, specifying that Multicast group is accepting members. This results in the creation of the Multicast filtering database. This section contains the following topic: . Defining IGMP Snooping Defining IGMP Snooping The IGMP Snooping Setup Page allows network managers to define IGMP Snooping parameters for VLANs. Click Device . IGMP Snooping • Setup. The IGMP Snooping Setup Page opens. Figure 90 IGMP Snooping Setup Page The IGMP Snooping Setup Page contains the following fields: 52 Table 72 IGMP Snooping Setup Page item description Item Description Defines whether IGMP Snooping is enabled on the switch. The possible field values are: IGMP Snooping Status . Enabled: Indicates that IGMP Snooping is enabled on the switch. . Disabled: Indicates that IGMP Snooping is disabled on the switch. This is the default value. Defines whether IGMP Query is enabled on the switch. The possible field values are: IGMP Query Status . Enabled: Indicates that IGMP Query is enabled on the switch. . Disabled: Indicates that IGMP Query is disabled on the switch. This is the default value. Select VLAN ID Specifies the VLAN ID Defines whether IGMP snooping is enabled on the VLAN. The possible field values are: IGMP Snooping Status . Enabled: Enables IGMP Snooping on the VLAN. . Disabled: Disables IGMP Snooping on the VLAN. This is the default value. Defines whether IGMP query is enabled on the VLAN. The possible field values are: IGMP Query Status . Enabled: Enables IGMP Query on the VLAN. . Disabled: Disables IGMP Query on the VLAN. This is the default value. Configuring ACL Access Control List (ACL) allows network managers to define classification actions and rules for specific ingress ports. A network manager can configure an ACL on an ingress port so that packets are either admitted entry or denied entry. The user can also specify that when packets are denied entry, the ingress port is also disabled. This section includes the following topics: . Configuring MAC Based ACL . Configuring IP Based ACL . Configuring ACL Binding Configuring MAC Based ACL This section includes the following topics: . Defining MAC Based ACL . Modifying MAC Based ACL . Removing MAC Based ACL . Viewing MAC Based ACL Defining...