Device>Configure>IP Route
The IP routing table stores information on possible destinations and how to reach them. Whenever a host or gateway needs to transmit a packet, it consults the routing table to determine the route by which to send the datagram.
You can view, add, or delete routes to the IP routing table. Each entry in the routing table describes an IP route.
The routing table provides the following information for each route:
Destination (ipRouteDest)
Destination IP address of the route. The address 0.0.0.0 is a default address.
Next Hop (ipRouteNextHop)
Next hop for this route.
Mask (ipRouteMask)
Subnet mask for the destination address.
Routing Protocol (ipRouteProto)
Protocol by which the route was learned.
Port (ipRouteIfIndex)
Index of the interface through which traffic to this destination is transmitted.
Hop Count (ipRouteMetric1)
Number of hops (1 or 0) for this route. Its meaning depends on the routing protocol.
Route Type (ipRouteType)
Status or type of the route. Possible values are direct, indirect, invalid, or other. The invalid value is usually used to delete an entry. Otherwise, it indicates an error.
Route Age (ipRouteAge)
Number of seconds that have elapsed since this route was last updated or validated.
Click Create to create a new row in the IP routing table (enter Destination IP Address and Next Hop, then click Apply), or click Delete to remove the currently selected row.
Click Apply to make your changes take effect, or click Cancel to close the dialog box without making any changes. Click Print to print the contents of the dialog box.
Device>Configure>ARP Table
Many types of data transmission (for example, on a LAN or a packet network) require information that provides physical address information for corresponding IP addresses.
ARP (Address Resolution Protocol) dynamically discovers the corresponding physical address for a known IP address. This process is called IP-to-physical-address mapping, and the information is stored in a table called the Address Translation Table or the ARP table. This information is required for various types of data transmission.
The ARP table can also include your manual entries.
The following information is displayed in the ARP Table window:
Interface (ipNetToMediaIfIndex)
Index value of this interface from the Interface table.
Network Address (ipNetToMediaNetAddress)
IP address for which the corresponding physical address is displayed.
Physical Address (ipNetToMediaPhysAddress)
Physical address that is mapped to the IP address.
Type (ipNetToMediaType)
How the entry was learned. Possible values are dynamic, static, other, or invalid. Use the invalid value to remove the entry from the table.
Click Create to create a new row in the ARP table (enter an Interface index number, a Network IP address, and a Physical Address, then click Apply), or click Delete to remove the currently selected row.
Click Apply to make your changes take effect, or click Cancel to close the dialog box without making any changes. Click Print to print the contents of the dialog box.
Device>Configure>TCP Connections
Information on TCP connections is usually used for debugging and provides information on which TCP ports are in use on the switch.
The TCP Connections window displays the following information:
Local Address (tcpConnLocalAddress)
Local IP address for the TCP connection.
Port (tcpConnLocalPort)
Local port number for the TCP connection.
Remote Address (tcpConnRemAddress)
Remote IP address for the TCP connection.
Port (tcpConRemPort)
Remote port number for the TCP connection.
State (tcpConnState)
Current status of the TCP connection. Possible values are closed, listen, synSent, synReceived, established, finWait1, finWait2, closeWait, lastAck, closing, timeWait, or delete TCB (transmission control block).
Click Apply to make your changes take effect, or click Cancel to close the dialog box without making any changes. Click Print to print the contents of the dialog box.
Device>Configure>VLAN & Bridge>Configure
Most of the configuration required in bridging is related to the Spanning Tree Algorithm. The Spanning Tree Algorithm allows the connected network topology to contain multiple physical paths between two stations, but constrains the active topology to be a single-span tree. If a port on one bridge fails, the other bridges can reconfigure the topology and switch traffic over to new paths.
If the Spanning Tree feature is not enabled, no backup path exists to maintain bridge connectivity.
To display or change bridging configuration for a device, click Configure in the VLAN & Bridge dialog box.
The dialog box displays the following information:
Bridge Address (dot1dBaseBridgeAddress)
MAC address of the bridge.
Bridge Type (dot1dBaseType)
Type of bridging that this bridge can do. The possible values are unknown, transparent-only, sourceroute-only, and srt (source route transparent bridging).
Forwarding DB Learn Discards (dot1dTpLearnedEntryDiscards)
Number of Forwarding Database entries that have been or would have been learned but were discarded because of lack of space.
Spanning Tree Protocol (sysvlanSpantreeEnable)
Whether the Spanning Tree feature is enabled or disabled. If disabled, transparent bridging is used.
Forwarding DB Aging (secs) (dot1dTpAgingTime)
Timeout value in seconds after which dynamically-learned forwarding information is removed from the bridges forwarding database. Possible values range from 10 through 1,000,000 seconds, and the recommended default is 300 seconds.
Spanning Tree Protocol (dot1dStpProtocol)
Version of the Spanning Tree Protocol being used. The possible values are unknown, decLb100, or ieee80221d. The unknown value usually indicates an error.
Priority (dot1dStpPriority)
Integer that is the first two octets of the bridge identifier.
Last Topology Change (dot1dStpTimeSinceTopologyChange)
Date and time that the last topology change was made.
Topology Changes (dot1dStpTopChanges)
Total number of topology changes by this bridge since it was last reset or initialized.
Designated Root (dot1dStpDesignatedRoot)
Bridge identifier of the node that this bridge indicates is the current root of the spanning tree.
Root Cost (dot1dStpRootCost)
Integer that represents the total cost of the best path to the root.
Root Port (dot1dStpRootPort)
Port number through which the lowest-cost path to the root is accessed.
Max Age (dot1dStpMaxAge)
Timeout value for STP information learned from the network. After this interval, information that has not been refreshed will be discarded.
Hello Time (dot1dStpHelloTime)
Interval for sending configuration bridge PDUs if the bridge is the root or is trying to become the root.
Hold Time (dot1dStpHoldTime)
Interval at which a maximum of two configuration bridge PDUs are transmitted by this node.
Forward Delay (dot1dStpForwardDelay )
Time for this port to spend in each of the listening and learning states in preparation for going into the forwarding state.
Bridge Max Age (dot1dStpBridgeMaxAge)
Value that all bridges use for the maximum age timeout when this bridge is the root. Possible values are from 600 to 4000 seconds.
Bridge Hello Time (dot1dStpBridgeHelloTime)
Interval that all bridges use for hello time when this bridge is the root.
Bridge Forward Delay (dot1dStpBridgeForwardDelay)
Value used by all bridges for the forward delay interval when this bridge is the root bridge.
Click Apply to make your changes take effect. Click Cancel to close the dialog box without making any changes. Click Print to print the contents of the dialog box.
Note: If you are viewing the bridging configuration for a Token Ring Bridge Relay Function (TrBRF), click Segments to display a list of the TrCRFs in the TrBRF and their spanning tree configuration.