NVRAM Settings

The NVRAM Settings tab allows the user to configure the initialization parameters stored in the NVRAM (Non-Volatile Random Access Memory) of the switch.

Whenever the switch is started or rebooted, these initialization parameters are read before task initialization and updated in the local data structure. These parameters are applied to SNMP, when the task is created for that component.

NVRAM Settings

Figure 1. NVRAM Settings


Screen Objective This screen allows the user to configure the initialization parameters that are stored in the NVRAM of the switch. The screen lists only some of the initialization parameters and not all parameters such as MSR (MIB Save and Restore) feature related parameters of the iS5Comnvram.txt.
Navigation

System > NVRAM Settings
Fields
  • IP Address Mode—select the mode by which the default interface in the device gets the IP address. The default option is Manual. The list contains:
    • Manual—assigns the Static IP address to the default interface. The IP address defined in the field Default IP Address and the IP mask defined in the field Subnet Mask are assigned to the interface.
      Note:

      If the network in which the switch is implemented contains a server such as DHCP server, allocating IP address, the manually assigned IP address should not be within the range of the addresses that will be allocated by the server to the other switches. This precaution avoids creation of IP address conflicts between the switches.

    • Dynamic—assigns IP address dynamically; that is, IP address provided by the server in the network is assigned to the default interface on switch reboot. The IP address is fetched through the dynamic IP address configuration protocols such as DHCP client, RARP client, BOOTP client, etc.
      Note: The static IP address is assigned to the default interface even if the mode is selected as Dynamic if the switch fails to fetch the IP address dynamically.
  • IP Address Alloc Protocol—select the dynamic IP address configuration protocol to be used for fetching the IP address dynamically, if the field IP Address Mode is selected as Dynamic. Allows the user to only view the selected dynamic IP address configuration protocol, if the field IP Address Mode is selected as Manual. The default option is DHCP. The list contains:
    • RARP—Reverse Address Resolution Protocol (RARP) that allows a client device to dynamically find its IP address, when it has only its hardware address such as MAC address.
      Note:

      Currently, the RARP option is not supported.

    • DHCP—Dynamic Host Configuration Protocol (DHCP) that allows a client device to obtain configuration parameters, such as network address, from the server.
    • BOOTP—Bootstrap Protocol (BOOTP) that allows a client device to obtain its own IP address, address of a server host and name of a boot file to be executed.
      Note:

      This parameter can be set only when IP Address Mode is dynamic. When set as manual IP Address Alloc Protocol is greyed out.

  • Default IP Address—enter the default IP address to change the IP address, if the field IP Address Mode is selected as Manual. The default value is 192.168.10.1.
    Note:

    Default IP address can be configured only when IP address mode is set as Manual. Default IP address is greyed out when IP address mode is set as dynamic.

    Note: If the network in which the switch is implemented contains a server such as DHCP server, allocating IP address, the configured IP address should not be within the range of the addresses that will be allocated by the server to the other switches. This precaution avoids creation of IP address conflicts between the switches.
    Note: The configured IP address should be in the same IP range of the network in which the switch is placed.
 
  • Subnet Mask—enter the subnet mask for the configured IP address, if the field IP Address Mode is selected as Manual. Allows the user to only view the configured subnet mask, if the field IP Address Mode is selected as Dynamic. The default value is 255.0.0.0.
    Note: Subnet Mask can be configured only when IP address mode is set as Manual. Subnet Mask is greyed out when IP address mode is set as dynamic.
    Note: The configured subnet mask should be in the same subnet of the network in which the switch is placed
  • Switch Base MAC Address—enter the base MAC address of the switch. This MAC address is assigned to the default interface of the switch. The switch uses this address as its hardware address. Layer 3 modules use the switch MAC address as the source MAC address in the transmitted packets. The default value should be from iS5 range e.g. e8:e8:75.
  • Default Interface Name—enter the interface to be set as the default interface. This is a combination of interface type and interface ID. The interface ID is a combination of slot number and the port number. The format is <interface type><slot number/port number>. There is no space between these two entries. All ports available in the switch at that time are populated in the list. Example: Gi0/1 (Here Gi is interface type Gigabit Ethernet interface 0 is slot number and 1 is port number). The default value is Gi 0/1.
  • SNMP EngineID—Enter the engine ID that is utilized as a unique identifier of a SNMPv3 engine. This engine ID is used to identify a source SNMPv3 entity and a destination SNMPv3 entity to coordinate the exchange of messages between the source and the destination. The default value is 80.00.08.1c.04.46.53.
  • PIM Mode—select the operation mode of the PIM. The default option is Sparse. The list contains:
    • Dense—sets operation mode of PIM as Dense Mode. PIM implements a flood and prune mechanism. PIM floods multicast traffic periodically and prunes branches of shortest-path tree where no interested receivers are present. This mode is best suited for networks where few or no prunes occur.
    • Sparse—sets operation mode of PIM as Sparse Mode. PIM forwards multicast traffic to the device only if an explicit request is received from that device for this traffic. This mode is best suited for Internet.
  • Snoop Forward Mode—select the mode to be used for building the forwarding table that is used during IGS / MLDS. The default option is MAC-Based. The list contains:
    • IP Based—uses table containing IP multicast forwarding information based on both outer and inner VLAN, during snooping.
    • MAC Based—uses table containing MAC-based multicast forwarding information, during snooping.
 
  • CLI Serial Console—select whether the CLI console prompt is required for the session through serial console. The default option is Yes. The list contains:
    • Yes—specifies that CLI prompt is made available in the serial console session.
    • No—specifies that CLI prompt is not made available in the serial console session
    Note:

    This value does not affect the availability iS5Com CLI prompt in the sessions established through Telnet. That is, iS5Com CLI prompt is always available in the Telnet session.

  • MGMT Port Access -- Select whether the MGMT Port will be active. This port is typically used for factory use and advanced debugging with factory support. Selecting No will disable the MGMT Port.
  • External Storage Access-- Selecting No will disable the SD Card and USB peripherals.
  • Default VLAN Identifier—enter the default VLAN identifier to be used at system startup. This VLAN is set as default VLAN during reboot of the switch. The format of this field is integer. This value ranges from 1 to 4094. The default value is 1 which means that VLAN 1 is set as the default VLAN.
    Note: Once the Default VLAN ID is configured, the switch has to be restarted before saving any configuration.
    Note: It is not advisable to change the default VLAN ID when some configurations are already saved.
  • Dynamic Port Count—enter the number of ports required for the iS5com. The maximum count equal to the system defined maximum physical interfaces. The default value is the system defined maximum physical interfaces.
  • Reset Dynamic Port Count—click to enable the Reset Dynamic Port Count. If this check box is enabled, the system takes the default value on restarting the system again.
  • Incremental Save—select one of the options to indicate whether SNMP Update Trigger for Incremental Save is to be generated or not. The default option is Disable. The list contains:
    • Enable—enables the incremental save which generates the update trigger for each time an nmhSet operation is successful.
    • Disable—disables the Incremental Save option which will not generate the update trigger at all.
    Note: To disable Incremental Save, Auto-save Trigger should be disabled.
  • Auto-save Trigger—the auto-save trigger option is for saving the completed configuration automatically or manually. The default option is Disable. The list contains:
    • Enable—Specifies that every configuration is saved automatically.
    • Disable—Specifies that completed configuration will not be saved automatically.
    Note: To enable Auto-Save Trigger, Incremental Save option should be enabled
 
  • Rollback—select the SNMP rollback feature. The default option is Enable. The list contains:
    • Enable—enables the SNMP rollback feature. The enabled value specifies that it allows the failure in set operation for any varbind (variable binding), which results in rollback of all Varbinds whose values has been set in this SET PDU. A Varbind (Variable Binding) represents a set of Oid/Value pairs.
    • Disable—disables the SNMP rollback feature. The disabled value specifies that it allows the failure in set operation to simply return error.
  • Factory Reset—select to perform factory reset.
Buttons
  • Apply—modifies attributes and saves the changes
Parent topic: System Settings