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sys_attrs_atm(5)
NAME
sys_attrs_atm, sys_attrs_atmilmi3x, sys_attrs_atmip, sys_attrs_atmuni,
sys_attrs_lane, sys_attrs_uni3x - Asynchronous Transfer Mode (ATM)
subsystem attributes
DESCRIPTION
This reference page lists and describes attributes for the following
Asynchronous Transfer Mode (ATM) kernel subsystems:
· Base ATM support (atm)
· ATM Forum Integrated Layer Management Interface (atmilmi3x)
· Classical IP services (atmip)
· ATM Forum signaling and Integrated Layer Management Interface support
(atmuni)
· ATM Forum LAN Emulation (lane)
· ATM Forum signaling (uni3x)
Refer to the sys_attrs(5) reference page for an introduction to the topic
of kernel subsystem attributes.
atm Kernel Subsystem
This section lists and describes attributes for the base ATM (atm) kernel
subsystem.
bsysresvlim
The percentage of each ATM driver's total interface bandwidth that is
available to constant bit rate (CBR) circuits in the backward or
incoming direction. Use the atmconfig command to set this limit on a
per-driver basis.
Default value: 10 (percent)
Minimum value: 1
Maximum value: 100
cmm_msg_level
The level of verbosity for messages displayed by the ATM Connection
Management Module (CMM). If the value is greater than -1, it overrides
the value of the global_msg_level attribute. Subsystem Message Level
Values lists the attribute values and their meaning.
Default value: -1 (use global_msg_level value)
Minimum value: -1
Maximum value: 2
fsysresvlim
The percentage of each ATM driver's total interface bandwidth that is
available to constant bit rate (CBR) circuits in the forward or
outgoing direction. Use the atmconfig command to set this limit on a
per-driver basis.
Default value: 10 (percent)
Minimum value: 1
Maximum value: 100
global_msg_level
The level of verbosity for messages displayed by all components in the
ATM subsystem. Subsystem Message Level Values lists the attribute
values and their meaning.
Default value: 0 (normal message level)
Minimum value: 0
Maximum value: 2
resvtimeo
The number of seconds after which unused reserved resources are revoked
via an ATM_CME_RESV_EXPIRE exception notification.
Do not modify the default setting for this attribute unless instructed
to do so by Hewlett-Packard Company support personnel or by patch kit
documentation.
Default value: 30 (seconds)
Minimum value: 1
Maximum value: 3000
sysresvlim
The percentage of each ATM driver's total interface bandwidth that is
available to constant bit rate (CBR) circuits in the backward or
incoming and forward or outgoing direction. Use the atmconfig command
to set this limit on a per-driver basis.
Default value: 0 (percent)
Minimum value: 0
Maximum value: 100
atmilmi3x Kernel Subsystem
This section lists and describes attributes for the ATM Forum Integrated
Layer Management Interface (atmilmi3x) kernel subsystem.
atmilmi3x_msg_level
The level of verbosity for messages displayed by the ATMILMI3X
subsystem. If the value is greater than -1, it overrides the value of
the global_msg_level attribute. Subsystem Message Level Values lists
the attribute values and their meaning.
Default value: -1 (use global_msg_level value)
Minimum value: -1
Maximum value: 2
atmip Kernel Subsystem
This section lists and describes attributes for the Classical IP services
(atmip) kernel subsystem.
atmip_msg_level
The level of verbosity for messages displayed by the ATMIP subsystem.
If the value is greater than -1, it overrides the value of the
global_msg_level attribute. Subsystem Message Level Values lists the
attribute values and their meaning.
Default value: -1 (use global_msg_level value)
Minimum value: -1
Maximum value: 2
atmuni Kernel Subsystem
This section lists and describes attributes for the ATM Forum signaling and
Integrated Layer Management Interface support (atmuni) kernel subsystem.
atmuni_msg_level
The level of verbosity for messages displayed by the ATMUNI subsystem.
If the value is greater than -1, it overrides the value of the
global_msg_level attribute. Subsystem Message Level Values lists the
attribute values and their meaning.
Default value: -1 (use global_msg_level value)
Minimum value: -1
Maximum value: 2
lane Kernel Subsystem
This section lists and describes attributes for the ATM Forum LAN Emulation
(lane) kernel subsystem.
arp_mac_hash
The number of LE_ARP hash table buckets. The LE_ARP table is used in
resolving Ethernet MAC addresses into ATM addresses.
Default value: 128 (buckets)
Minimum value: 32
Maximum value: 1024
lane_msg_level
The level of verbosity for messages displayed by the LANE subsystem. If
the value is greater than -1, it overrides the value of the
global_msg_level attribute. Subsystem Message Level Values lists the
attribute values and their meaning.
Default value: -1 (use global_msg_level value)
Minimum value: -1
Maximum value: 2
nelan
The maximum number of emulated LANs that you can configure on a system.
The maximum number is determined by the number of End System
Identifiers (ESIs) available on the system.
Default value: 4 (ELANs)
Minimum value: 0
Maximum value: 64
vc_txflowq_maxlen
The maximum number of mbufs enqueued on a virtual circuit's (VC's)
output queue before packets are dropped.
Default value: 512 (bytes)
Minimum value: 0
Maximum value: 65535
uni3x Kernel Subsystem
This section lists and describes attributes for the ATM Forum signaling
(uni3x) kernel subsystem.
max_adapters
The maximum number of ATM adapters that can use ATM signaling. If you
increase the default value, you increase the amount kernel memory
required by the ATM subsystem.
Default value: 16 (adapters)
Minimum value: 1
Maximum value: 64
max_connections
The maximum number of ATM connections (SVCs) allowed by the system. If
you increase the default value, you increase the amount kernel memory
required by the ATM subsystem.
Default value: 4096 (connections)
Minimum value: 16
Maximum value: 262144
max_ptmpt_connections
The maximum number of point-to-multipoint ATM connections allowed by
the system. If you increase the default value, you increase the amount
kernel memory required by the ATM subsystem.
Default value: 1024 (connections)
Minimum value: 16
Maximum value: 262144
max_ptmpt_parties
The maxiumum number of parties (endpoints) allowed on a point-to-
multipoint virtual circuit (VC).
Default value: 32767 (endpoints)
Minimum value: 1
Maximum value: 32768
timer_resolution
The number of ticks per second of the signaling module timers. If you
increase this value, you achieve better precision, but with greater
processor overhead.
Default value: 10 (ticks per second), or 100-millisecond resolution
Minimum value: 2
Maximum value: 100
uni3x_msg_level
The level of verbosity for messages displayed by the UNI3X subsystem.
If the value is greater than -1, it overrides the value of the
global_msg_level attribute. Subsystem Message Level Values lists the
attribute values and their meaning.
Default value: -1 (use global_msg_level value)
Minimum value: -1
Maximum value: 2
Subsystem Message Level Values
This section lists the valid values for setting the message level for the
atm, atmilmi3x, atmip, atmuni, lane, and uni3x kernel subsystems.
0 Normal message level. Displays subsystem initialization messages,
important state changes, and significant error conditions. This is the
default level for the global_msg_level configuration attribute.
1 Informational level. In addition to information displayed at the
previous level, displays messages for normal virtual circuit (VC)
release events, transient errors, and signaling and ILMI state changes.
2 Verbose level. In addition to information displayed at the previous
level, displays detailed information on connection failures, state
changes, and unexpected events that is needed for diagnosing ATM
problems.
SEE ALSO
sys_attrs(5), atmconfig(8)
Asynchronous Transfer Mode
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Index for
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