o alternative subnet addresses Support: L1,L2,IP Default: No addresses Value: Set of subnet-address A set of alternative IP addresses and subnet masks for this interface. You can modify this characteristic only when the entity is disabled. o arp holding time Support: IP Default: 600 Value: 30-65535 Number of seconds to hold on to a routing circuit ip address translation entity. This characteristic is supported only if the circuit's type characteristic is csma-cd. o arp response waiting time Support: IP Default: 3 Value: 1-10 Number of seconds to wait for an ARP response when an ARP request has been sent. This characteristic is supported only if the circuit's type characteristic is csma-cd. o authentication type Support: L1,L2,IP Default: None Value: None or simple Type of authentication to be used for LAN L1 Hellos, LAN L2 Hellos, or PtPt Hellos on this circuit. o data link entity Support: All Default: No data link Value: Local-entity-name name Name of the entity within the data link module to be created when a port is opened for that data link type. You can modify this characteristic only when the entity is disabled. This attribute is supported for all types of circuits, however for X.25 circuits set the attribute to x25 access. o directed broadcast Support: L1,IP Default: On Value: Off or On Specifies how an IP packet is to be forwarded on a broadcast link. off Discard the packet silently. on Broadcast the packet using data level link broa that either of the following conditions is true: o The packet's subnet address matches the value of the subnet address characteristic. o The packet's subnet address matches one of the values of the alternative subnet addresses characteristic. This characteristic is supported only if the characteristic type is set to csma-cd. o dna neighbor Support: L1,L2 Default: True Value: True or false If true, specifies that the neighbor is expected to be DNA compliant, and so proprietary mechanisms are possible. If false, no router-to-router Hellos or LSPs will be sent over this circuit. This characteristic is supported only if the characteristic type is not x25 da. You can modify this characteristic only when the entity is disabled. o enable phaseiv address Support: All Default: True Value: True or false Specifies whether the physical LAN address is to be set to the Phase IV style LAN address (that is, AA-00-04-00-xx-xx). The LAN address is set only if this attribute is true and the value of the Phase IV Address characteristic is not 0.0. If Phase IV Address is not 0.0 and there are multiple adaptors to the same LAN, only one circuit may have this attribute set to true. This characteristic is supported only if the characteristic type is set to csma-cd. o explicit receive verification Support: All Default: True Value: True or false Type of password verification performed at circuit initialization. If true, the received verifier is checked against the value of the characteristic receive verifier for this circuit, if any. If false, the received verifier is checked against the set of verifiers specified in the routing permitted neighbor entities. This attribute is supported only if the characteristic type is set to ddcmp, hdlc, x25 static incoming, x25 static outgoing, and x25 permanent. o hello timer Support: L1,L2 Default: 10 Value: 1-32767 Interval, in seconds, between IS Hello messages. o idle timer Support: All Default: 30 Value: 1-65535 Number of seconds of idle time before a call is cleared. This attribute is supported only if the characteristic type is x25 da. o inactive area address Support: All Default: No area Value: Set of area addresses address Area address associated with the use of the inactive subnet of ISO 8473. Maximum area address that may be present is 1. This characterisitic is supported only if the characteristic type is set to csma-cd. o initial minimum timer Support: All Default: 55 Value: 1-65535 Period, in seconds, for which an X.25 call remains connected after being established, irrespective of traffic. This should be set small enough that the call is cleared before the start of the next charging interval. This attribute is supported only if the characteristic type is x25 da. o isis hello timer Support: L1,L2 Default: 3 Value: 1-32767 Interval, in seconds, between LAN level 1 and level 2 router-to- router Hello messages. This value is also used as the interval between IS Hello messages when polling the ES configuration. o L1 cost Support: L1,L2 Default: 20 Value: 1-63 Cost of this circuit for level 1 traffic. o L1 router priority Support: L1,L2 Default: 64 Value: 1-127 Priority for becoming LAN level 1 designated router. This attribute is supported only if the circuit's characteristic type is csma-cd. o L2 cost Support: L2 Default: 20 Value: 1-63 Cost of this circuit for level 2 traffic. o L2 router priority Support: L2 Default: 64 Value: 1-127 Priority for becoming LAN level 2 designated router. This attribute is supported only if the circuit's characteristic type is csma-cd. o manual data link sdu size Support: All Default: 1492 Value: 128-65535 Preferred maximum data-link block size, in octets. You can modify this characteristic only when the entity is disabled. If the characteristic type is csma-cd, this characteristic is a read- only attribute whose value is fixed at 1492. o manual data link sdu size for ip Support: IP Default: See Value: 128-65535 description Preferred maximum DSDU size, in octets, for the transmission of IP packets. The DSDU size includes the size of the packet containing the IP header. On point-to-point HDLC links, the DSDU size also includes the 1-octet link encapsulation (that is, the maximum IP packet size is the value of this attribute minus 1). The default value depends on the circuit type, as follows: csma-cd 1500 ddcmp 1500 hdlc 1500 X.25 (all 576 types) You can modify this characteristic only when the entity is disabled. o manual L2only mode Support: L2 Default: False Value: True or false If true, specifies that this circuit is to be used only for level 2 traffic. If false, the circuit may be used for both level 1 and level 2 traffic. You can modify this characteristic only when the entity is disabled. o manual routers Support: End Default: No router Value: Set of LAN addresses IDs Manually entered IDs of routers. If this set is empty, the circuit will auto-configure the routers. This characteristic is supported only if the circuit's characteristic type is csma-cd. For Tru64 UNIX, a maximum of 5 routers can be in the set. o maximum arp retries Support: IP Default: 3 Value: 1-10 Maximum number of times that an ARP request can be sent for the same IP address. This characteristic is supported only if the circuit's characteristic type is set to csma-cd. o maximum call attempts Support: All Default: 10 Value: 0-255 Maximum number of successive X.25 call failures before the circuit is regarded as being halted. A value of zero means that there is no limit to the number of retries. This attribute is supported only if the characteristic type is set to x25 static outgoing. You can modify this characteristic only when the entity is disabled. Also, you can only increase the characteristic value. o maximum svc adjacencies Support: All Default: 1 Value: 1-65535 Number of routing circuit adjacency entities to reserve for SVCs on this circuit. This is effectively the maximum number of simultaneous calls possible on this circuit. This attribute is supported only if the characteristic type is x25 da. o originating queue limit Support: L1,L2 Default: 2 Value: 1-50 Maximum number of data PDUs originated by this node that can be on this circuit's transmit queue. This should be set to the minimum number required to keep the data link from idling. You can modify this characteristic to a higher value when the entity is disabled; you can never modify it to a lower value. o recall timer Support: All Default: 60 Value: 0-65535 Interval, in seconds, that must elapse between a call failure and a recall. This attribute is supported only if the characteristic type is set to x25 static outgoing, x25 da, hdlc, or ddcmp. o receive passwords Support: L1,L2,IP Default: No passwords Value: Set of hex-string Set of passwords that are valid in received LAN L1 Hellos, LAN L2 Hellos, and PtPt Hellos when simple authentication is in use on this circuit. You cannot use the show command to display the value of this attribute. o receive verifier Support: All Default: No verifier Value: Hex string, length 0-38 Value against which a neighbor node's received verifier is to be checked. If no verifier is specified, no verification is performed. This attribute is supported only if the characteristic type is either ddcmp, hdlc, x25 static incoming, x25 static outgoing, or x25 permanent. You cannot display this characteristic. o reserved adjacency Support: End Default: False Value: True or false If true, specifies that one SVC must be reserved for connection to a router. If false, no SVC needs to be reserved for this purpose. This characteristic is supported only if the circuit's characteristic type is x25 da). You can modify this characteristic only when the entity is disabled. o reserve timer Support: All Default: 600 Value: 1-65535 Interval, in seconds, during which the SVC remains reserved for the previous DTE address after a call is cleared due to lack of traffic. This attribute is supported only if the characteristic type is x25 da. o rip generated default route Support: L1,L2,IP Default: False Value: True or false If true, this specifies that the default route is announced in RIP messages sent on this circuit, with the metric value specified in the RIP generated default route metric characteristic. If false, the default route is not generated. o rip generated default route metric Support: L1,L2,IP Default: 1 Value: 0-16 Specifies the metric to be used when announcing a generated default route through RIP on this circuit. o rip neighbors Support: L2,IP Default: No addresses Value: Set of IP-addresses IP addresses of neighboring systems with which RIP will be exchanged on this circuit. If the circuit is a point-to-point circuit, this set must contain a single IP address if the rip state characteristic is to be set to send and receive. Also, you must disable the entity before altering this characteristic. If the rip send type characteristic is set to broadcast, only RIP messages from addresses specified in this set will be received; other messages will be silently discarded. This characteristic is supported only if the routing protocols supported characteristic of the routing entity includes the RIP routing protocol. o rip poisoned reverse Support: L2,IP Default: True Value: True or false Specifies whether poisoned reverse routes are to be sent in RIP messages on this circuit. If false, poisoned reverse routes are not sent. This characteristic is supported only if the routing protocols supported characteristic of the routing entity includes the RIP routing protocol. o rip receive default route Support: L2,IP Default: True Value: True or false Specifies whether the default route is accepted from RIP messages on this circuit. If false, the default route from RIP messages on this circuit is discarded. This characteristic is supported only if the routing protocols supported characteristic of the routing entity includes the RIP routing protocol. o rip send type Support: L2,IP Default: Broadcast Value: Broadcast or point-to-point Specifies how RIP messages are sent on this circuit. broadcast RIP messages are sent via data link broadcast. point-to- RIP messages are sent directly to each IP address point specified in the rip neighbors characteristic. This characteristic is supported only if the routing protocols supported characteristic of the routing entity includes the RIP routing protocol and if the circuit's type characteristic is csma-cd. o rip state Support: L2,IP Default: Off Value: See description Specifies how RIP messages are treated on this circuit. off RIP messages cannot be sent or received on this circuit. receive RIP messages can be received but not sent on this circuit. send and RIP messages can be sent and received on this receive circuit. This characteristic is supported only if the routing protocols supported characteristic of the routing entity includes the RIP routing protocol. o send password Support: L1,L2,IP Default: No password Value: Hex-string Password to be sent in LAN L1 Hellos, LAN L2 Hellos, and PtPt Hellos when simple authentication is used on this circuit. You cannot use the show command to display the value of this attribute. o subnet address Support: IP Default: 0.0.0.0 Value: Subnet address IP address and subnet mask of this interface. You can modify this characteristic only when the entity is disabled. o template Support: All Default: No template Value: Template-id name Name of the template to be used when a port is opened for this data-link type. If no template name is specified, no template is used. You can modify this characteristic only when the entity is disabled. o transmit verifier Support: All Default: No verifier Value: Hex-string, length 0-38 Value to be transmitted for verifying the identity of this node. If no verifier is specified, no verifier is transmitted. This characteristic is supported only if the characteristic type is either ddcmp, hdlc, x25 static outgoing, x25 static incoming, or x25 permanent. You cannot display this characteristic. o type Support: All Type of circuit. You cannot modify this characteristic. This characteristic is set by means of an argument to the create command. csma-cd The circuit is a broadcast circuit. ddcmp The circuit is a DDCMP circuit. hdlc The circuit is an HDLC circuit. x25 da The circuit is a dynamically allocated X.25 circuit. x25 X.25 permanent virtual circuit. permanent x25 static Static incoming X.25 circuit. incoming x25 static Static outgoing X.25 circuit. outgoing o X.25 filters Default: See Value: Set of simple names description Specifies the set of X.25 filters to be used when a port is opened to the X.25 module. Typically, there will be two sets: one to specify the selection on the Call User Data field for DECnet-Plus and the other to specify the selection on the subaddress for Phase IV. This attribute is valid only if the characteristic type is x25 static incoming or x25 da.