NAME¶
SNMP::Info::Layer3::Nexus - SNMP Interface to Cisco Nexus Switches running NX-OS
AUTHOR¶
Eric Miller
SYNOPSIS¶
# Let SNMP::Info determine the correct subclass for you.
my $nexus = new SNMP::Info(
AutoSpecify => 1,
Debug => 1,
# These arguments are passed directly to SNMP::Session
DestHost => 'myswitch',
Community => 'public',
Version => 2
)
or die "Can't connect to DestHost.\n";
my $class = $nexus->class();
print "SNMP::Info determined this device to fall under subclass : $class\n";
DESCRIPTION¶
Abstraction subclass for Cisco Nexus Switches running NX-OS.
For speed or debugging purposes you can call the subclass directly, but not
after determining a more specific class using the method above.
my $nexus = new SNMP::Info::Layer3::Nexus(...);
Inherited Classes¶
- SNMP::Info::Layer3::CiscoSwitch
Required MIBs¶
- CISCO-ENTITY-VENDORTYPE-OID-MIB
- Inherited Classes' MIBs
- See "Required MIBs" in SNMP::Info::Layer3::CiscoSwitch for its
own MIB requirements.
GLOBALS¶
These are methods that return a scalar value from SNMP
- $nexus->os()
- Returns 'nx-os'
- $nexus->os_ver()
- Returns operating system version extracted from "sysDescr".
- $nexus->serial()
- Returns the serial number of the chassis from ENTITY-MIB.
- $nexus->model()
- Tries to reference $nexus->id() to
CISCO-ENTITY-VENDORTYPE-OID-MIB
Removes 'cevChassis' for readability.
- $nexus->mac()
- "dot1dBaseBridgeAddress"
Overrides¶
IP Address Table
Each entry in this table is an IP address in use on this device. Some versions
do not index the table with the IPv4 address in accordance with the MIB
definition, these overrides correct that behavior.
Also, the table is augmented with IP addresses in use by UDP sockets on the
device, as determined by checking
RFC1213-MIB::udpLocalAddress. Valid
addresses from this table (any IPv4 that is not localhost, 0.0.0.0, Class D
(multicast) or Class E (experimental) are added as a /32 on interface ID 0.
This is a workaround to determine possible VPC Keepalive IP addresses on the
device, which are probably advertised by CDP/LLDP to neighbors.
- $nexus->ip_index()
- Maps the IP Table to the IID
("ipAdEntIfIndex")
- $nexus->ip_table()
- Maps the Table to the IP address
("ipAdEntAddr")
- $nexus->ip_netmask()
- Gives netmask setting for IP table entry.
("ipAdEntNetMask")
- $nexus->ip_broadcast()
- Gives broadcast address for IP table entry.
("ipAdEntBcastAddr")
Globals imported from SNMP::Info::Layer3::CiscoSwitch¶
See documentation in "GLOBALS" in SNMP::Info::Layer3::CiscoSwitch for
details.
TABLE METHODS¶
These are methods that return tables of information in the form of a reference
to a hash.
Table Methods imported from SNMP::Info::Layer3::CiscoSwitch¶
See documentation in "TABLE METHODS" in
SNMP::Info::Layer3::CiscoSwitch for details.