# Managing 1600 Device Configuration

The following is a list of functions for configuring and managing the Catalyst 1600.

Management

VLAN

Source Routing

Bridge

Bridge Forwarding

Bridge Static

IP Routing

ARP Table

TCP

TCP Connections

UDP

# Management

Device>Configure>Management

Device management involves displaying and changing information about a device including information regarding device physical location, description, and IP configuration.

To display device management information, do the following:

1. Display the CiscoView Configure Device window.

2. Choose Management from the CATEGORY popup menu.

The CiscoView Configure Device window shows the following information:

System Name (sysName)

Device domain name. The name can have a maximum of 256 characters.

Contact (sysContact)

Name of the network administration manager and information on how to contact this person. The contact name can contain up to 256 characters.

Location (sysLocation)

Physical location of the device. The location description can have a maximum of 256 characters.

IP Address (madgeConfigIPAddress)

IP address of the displayed device.

IP Mask (madgeConfigIPSubnetMask)

Network mask for the displayed device.

Serial Number (moduleSerialNumber)

Burned-in identifying serial number for the displayed device.

Microcode Version (madgeConfigMCodeVersion)

Version of the microcode being used on the device.

Bootcode Version (madgeConfigBCodeVersion)

Bootcode version of the device and the hardware version.

Microcode Filename (madgeConfigMCodeFilename)

Original filename for the microcode that has been downloaded to the device.

Device Health (madgeConfigDeviceHealth)

Health of the device. Possible device health states include the following:

Normal The device is operating normally.

Warning You should check the device.

Degraded The device is operating at reduced functionality.

Critical The device is in a critical state.

Admin Status (madgeConfigAdminStatus)

Current operating mode of the device. The mode can be changed by setting this field. If the device does not support the specified action, it will return a bad value error.

Possible Admin Status values include the following:

Normal

Standard operating mode.

Reboot

Select Reboot to reboot the device.

Identify

The device lights are flashing. Select Identify to force the device to identify itself by flashing light.

Test

The device is in self-test mode. Select Test to force the device to do a self-test.

Erase-config

Select Erase-config to erase all configuration information.

Erase-flash

Select Erase-flash to erase all microcode.

Write Password (madgeConfigPassword)

Write password for the device. Any GET operation on this object will return PUBLIC. If an attempt is made to set the password to a string greater than the maximum, a BAD VALUE will be returned.

Authentication Traps (snmpEnableAuthenTraps)

Whether traps will be sent when security violations occur. Enable this field if you want traps to be sent when security violations occur.

# Source Routing

Device>Configure>Source Routing

To display source routing information for the selected device, select Source Routing from the CATEGORY popup window in the CiscoView Configure Device window.

The CiscoView Configure Device window displays the following information:

Admin Status (RingswitchSrAdminState)

You can enable or disable source routing for the switch using this menu.

Oper Status (RingswitchSrOperState)

This field shows the actual state of source routing for the switch. If source routing has been disabled, this field will be labeled inactive. If source routing is enabled, this field should be labeled active; if the switch cannot perform source routing, the field will be labeled inactive.

# IP Route

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.

# ARP Table

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.

# TCP

Device>Configure>TCP

The TCP dialog box displays the algorithm and retransmission timeout information for the device. The algorithm determines how long the system should wait after it has transmitted an unacknowledged segment before it should time out and retransmit the segment. This information helps control traffic congestion on your network.

The TCP window displays the following information:

Retransmission Algorithm (tcpRtoAlgorithm)

Algorithm used to compute the retransmission timeout. Possible values are rsre, vanj, constant, or other. rsre refers to MIL-STD-1778, app.B. vanj means Van Jacobson’s algorithm, and constant means a fixed value.

Min Retransmission Timeout (tcpRtoMin)

Lower boundary in milliseconds on the retransmission timeout. Its meaning depends on the algorithm used.

Max Retransmission Timeout (tcpRtoMax)

Maximum upper boundary in milliseconds allowed for a retransmission timeout. Its meaning depends on the algorithm.

Max Connections (tcpMaxConn)

Limit on the maximum number of concurrent TCP connections or specifies that the limit is dynamically determined.

Click Cancel to close the dialog box. Click Print to print the contents of the dialog box.

# TCP Connections

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.

# UDP

Device>Configure>UDP

The UDP Listener table records the socket addresses. Socket addresses are IP addresses and UDP port numbers used by local applications that are waiting for UDP datagrams. These applications are called listeners.

The UDP window displays the contents of the UDP Listener table.

Local Address (udpLocalAddress)

Local IP address for the UDP listener.

Local Port (udpLocalPort)

Corresponding local port number for the UDP listener, or the SNMP socket used on the switch.

Click Cancel to close the dialog box. Click Print to print the contents of the dialog box.

# Bridge

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 bridge’s 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.

# Bridge Forwarding

Device>Configure>VLAN & Bridge>Bridge Forwarding

To display bridge forwarding information for a device, click Bridge Forwarding from the VLAN & Bridge dialog box.

The Bridge Forwarding dialog box displays the following information:

MAC Address (dot1dTpFdbAddress)

Unicast MAC address of destinations that are reachable by the port.

Port (dot1dTpFdbPort)

Port to which frames with that destination MAC address should be forwarded.

Status (dot1dTpFdbStatus)

How the entry or destination became known to the bridge. Possible values are learned, self, mgmt, or other. Learned information can include both dynamic and static entries. Self indicates the MAC address of a port on this bridge. Mgmt means that this address is in the static table or database for the bridge.

Click Cancel to close the dialog box without making any changes. Click Print to print the contents of the dialog box.

# Bridge Static

Device>Configure>VLAN & Bridge>Bridge Forwarding

The bridge static table displays forwarding information that has been manually configured on the bridge. The table shows the destination address, the port through which the bridge will forward traffic to that destination, and the status of the entry.

To display bridge static information for a device, if the device supports the bridge static table, click Static in the VLAN & Bridge dialog box.

The Bridge Static dialog box displays the following information:

MAC Address (dot1dStaticAddress)

Destination MAC addresses that have been added to the database or table and to which the filtering/VLAN information applies. A MAC address consists of 6 bytes. The first three bytes identify the vendor.

Port (dot1dStaticReceivePort)

Port number from which a frame must be received for filtering to occur. The value 0 indicates that frames can be received from all ports on the bridge. For example, 1.6 means that card 1, port 6 is forwarding information for this port.

Allowed Ports (dot1dStaticAllowedToGoTo)

Set of ports through which forwarding is allowed. For example, the entry 1, 3, 7-10 indicates that ports 1, 3, 7, 8, 9, and 10 forward information for this port.

Status (dot1dStaticStatus)

Whether the entry is permanent or which conditions cause it to be removed. Possible values are permanent, deleteOnReset, deleteOnTimeout, or other.

Click Cancel to close the dialog box without making any changes. Click Print to print the contents of the dialog box.