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.\" ========================================================================
.\"
.IX Title "Info::Layer3 3pm"
.TH Info::Layer3 3pm "2011-09-28" "perl v5.12.4" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
SNMP::Info::Layer3 \- SNMP Interface to network devices serving Layer3 or
Layers 2 & 3
.SH "AUTHOR"
.IX Header "AUTHOR"
Max Baker
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 9
\& # Let SNMP::Info determine the correct subclass for you. 
\& my $l3 = new SNMP::Info(
\&                          AutoSpecify => 1,
\&                          Debug       => 1,
\&                          DestHost    => \*(Aqmyswitch\*(Aq,
\&                          Community   => \*(Aqpublic\*(Aq,
\&                          Version     => 2
\&                        ) 
\&    or die "Can\*(Aqt connect to DestHost.\en";
\&
\& my $class = $l3\->class();
\& print "SNMP::Info determined this device to fall under subclass : $class\en";
\&
\& # Let\*(Aqs get some basic Port information
\& my $interfaces = $l3\->interfaces();
\& my $i_up       = $l3\->i_up();
\& my $i_speed    = $l3\->i_speed();
\& foreach my $iid (keys %$interfaces) {
\&    my $port  = $interfaces\->{$iid};
\&    my $up    = $i_up\->{$iid};
\&    my $speed = $i_speed\->{$iid}
\&    print "Port $port is $up. Port runs at $speed.\en";
\& }
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This class is usually used as a superclass for more specific device classes
listed under SNMP::Info::Layer3::*   Please read all docs under SNMP::Info
first.
.PP
Provides generic methods for accessing \s-1SNMP\s0 data for Layer 3 network devices. 
Includes support for Layer2+3 devices.
.PP
For speed or debugging purposes you can call the subclass directly, but not
after determining a more specific class using the method above.
.PP
.Vb 1
\& my $l3 = new SNMP::Info::Layer3(...);
.Ve
.SS "Inherited Classes"
.IX Subsection "Inherited Classes"
.IP "SNMP::Info" 4
.IX Item "SNMP::Info"
.PD 0
.IP "SNMP::Info::Bridge (For L2/L3 devices)" 4
.IX Item "SNMP::Info::Bridge (For L2/L3 devices)"
.IP "SNMP::Info::EtherLike" 4
.IX Item "SNMP::Info::EtherLike"
.IP "SNMP::Info::Entity" 4
.IX Item "SNMP::Info::Entity"
.IP "SNMP::Info::PowerEthernet" 4
.IX Item "SNMP::Info::PowerEthernet"
.IP "SNMP::Info::IPv6" 4
.IX Item "SNMP::Info::IPv6"
.PD
.SS "Required MIBs"
.IX Subsection "Required MIBs"
.IP "\fIIP-MIB\fR" 4
.IX Item "IP-MIB"
.PD 0
.IP "\fIOSPF-MIB\fR" 4
.IX Item "OSPF-MIB"
.IP "\fI\s-1BGP4\-MIB\s0\fR" 4
.IX Item "BGP4-MIB"
.PD
.SS "Inherited MIBs"
.IX Subsection "Inherited MIBs"
See \*(L"Required MIBs\*(R" in SNMP::Info for its \s-1MIB\s0 requirements.
.PP
See \*(L"Required MIBs\*(R" in SNMP::Info::Bridge for its \s-1MIB\s0 requirements.
.PP
See \*(L"Required MIBs\*(R" in SNMP::Info::EtherLike for its \s-1MIB\s0 requirements.
.PP
See \*(L"Required MIBs\*(R" in SNMP::Info::Entity for its \s-1MIB\s0 requirements.
.PP
See \*(L"Required MIBs\*(R" in SNMP::Info::PowerEthernet for its \s-1MIB\s0 requirements.
.PP
See \*(L"Required MIBs\*(R" in SNMP::Info::IPv6 for its \s-1MIB\s0 requirements.
.SH "GLOBALS"
.IX Header "GLOBALS"
These are methods that return scalar value from \s-1SNMP\s0
.ie n .IP "$l3\->\fImac()\fR" 4
.el .IP "\f(CW$l3\fR\->\fImac()\fR" 4
.IX Item "$l3->mac()"
Returns root port mac address
.Sp
(\f(CW\*(C`ifPhysAddress.1\*(C'\fR)
.ie n .IP "$l3\->\fIrouter_ip()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIrouter_ip()\fR" 4
.IX Item "$l3->router_ip()"
(\f(CW\*(C`ospfRouterId.0\*(C'\fR)
.ie n .IP "$l3\->\fIbgp_id()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIbgp_id()\fR" 4
.IX Item "$l3->bgp_id()"
(\f(CW\*(C`bgpIdentifier.0\*(C'\fR)
.Sp
Returns the \s-1BGP\s0 identifier of the local system
.ie n .IP "$l3\->\fIbgp_local_as()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIbgp_local_as()\fR" 4
.IX Item "$l3->bgp_local_as()"
Returns the local autonomous system number
.Sp
(\f(CW\*(C`bgpLocalAs.0\*(C'\fR)
.SS "Overrides"
.IX Subsection "Overrides"
.ie n .IP "$l3\->\fImodel()\fR" 4
.el .IP "\f(CW$l3\fR\->\fImodel()\fR" 4
.IX Item "$l3->model()"
Tries to reference \f(CW$l3\fR\->\fIid()\fR to one of the product MIBs listed above
.Sp
Removes 'cisco'  from cisco devices for readability.
.ie n .IP "$l3\->\fIserial()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIserial()\fR" 4
.IX Item "$l3->serial()"
Tries to cull a serial number from \fIENTITY-MIB\fR, description, and
\&\fI\s-1OLD\-CISCO\-\s0\fR... \s-1MIB\s0.
.ie n .IP "$l3\->\fIvendor()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIvendor()\fR" 4
.IX Item "$l3->vendor()"
Tries to cull a Vendor name from \f(CW\*(C`sysDescr\*(C'\fR
.ie n .IP "$l3\->\fIroot_ip()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIroot_ip()\fR" 4
.IX Item "$l3->root_ip()"
Returns the primary \s-1IP\s0 used to communicate with the device.  Returns the first
found:  \s-1OSPF\s0 Router \s-1ID\s0 (\f(CW\*(C`ospfRouterId\*(C'\fR) or any \s-1OSPF\s0 Host \s-1IP\s0 Address
(\f(CW\*(C`ospfHostIpAddress\*(C'\fR).
.SS "Globals imported from SNMP::Info"
.IX Subsection "Globals imported from SNMP::Info"
See \*(L"\s-1GLOBALS\s0\*(R" in SNMP::Info for details.
.SS "Global Methods imported from SNMP::Info::Bridge"
.IX Subsection "Global Methods imported from SNMP::Info::Bridge"
See \*(L"\s-1GLOBALS\s0\*(R" in SNMP::Info::Bridge for details.
.SS "Global Methods imported from SNMP::Info::EtherLike"
.IX Subsection "Global Methods imported from SNMP::Info::EtherLike"
See \*(L"\s-1GLOBALS\s0\*(R" in SNMP::Info::EtherLike for details.
.SS "Global Methods imported from SNMP::Info::Entity"
.IX Subsection "Global Methods imported from SNMP::Info::Entity"
See \*(L"\s-1GLOBALS\s0\*(R" in SNMP::Info::Entity for details.
.SH "TABLE METHODS"
.IX Header "TABLE METHODS"
These are methods that return tables of information in the form of a reference
to a hash.
.SS "Overrides"
.IX Subsection "Overrides"
.ie n .IP "$l3\->\fIinterfaces()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIinterfaces()\fR" 4
.IX Item "$l3->interfaces()"
Returns the map between \s-1SNMP\s0 Interface Identifier (iid) and physical port
name.
.Sp
Only returns those iids that have a description listed in \f(CW$l3\fR\->\fIi_description()\fR
.ie n .IP "$l3\->\fIi_ignore()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIi_ignore()\fR" 4
.IX Item "$l3->i_ignore()"
Returns reference to hash.  Creates a key for each \s-1IID\s0 that should be ignored.
.Sp
Currently looks for tunnel,loopback,lo,null from \f(CW$l3\fR\->\fIinterfaces()\fR
.ie n .IP "$l3\->\fIi_name()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIi_name()\fR" 4
.IX Item "$l3->i_name()"
Returns reference to hash of iid to human set name.
.Sp
Defaults to \f(CW\*(C`ifName\*(C'\fR, but checks for an \f(CW\*(C`ifAlias\*(C'\fR
.ie n .IP "$l3\->\fIi_duplex()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIi_duplex()\fR" 4
.IX Item "$l3->i_duplex()"
Returns reference to hash of iid to current link duplex setting.
.Sp
Maps \f(CW$l3\fR\->\fIel_index()\fR to \f(CW$l3\fR\->el_duplex, then culls out 
full,half, or auto and sets the map to that value.
.Sp
See SNMP::Info::Etherlike for the \fIel_index()\fR and \fIel_duplex()\fR methods.
.ie n .SS "\fIIP-MIB\fP Arp Cache Table (""ipNetToMediaTable"")"
.el .SS "\fIIP-MIB\fP Arp Cache Table (\f(CWipNetToMediaTable\fP)"
.IX Subsection "IP-MIB Arp Cache Table (ipNetToMediaTable)"
.ie n .IP "$l3\->\fIat_index()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIat_index()\fR" 4
.IX Item "$l3->at_index()"
Returns reference to hash.  Maps \s-1ARP\s0 table entries to Interface IIDs
.Sp
(\f(CW\*(C`ipNetToMediaIfIndex\*(C'\fR)
.Sp
If the device doesn't support \f(CW\*(C`ipNetToMediaIfIndex\*(C'\fR, this will try
the deprecated \f(CW\*(C`atIfIndex\*(C'\fR.
.ie n .IP "$l3\->\fIat_paddr()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIat_paddr()\fR" 4
.IX Item "$l3->at_paddr()"
Returns reference to hash.  Maps \s-1ARP\s0 table entries to \s-1MAC\s0 addresses.
.Sp
(\f(CW\*(C`ipNetToMediaPhysAddress\*(C'\fR)
.Sp
If the device doesn't support \f(CW\*(C`ipNetToMediaPhysAddress\*(C'\fR, this will try
the deprecated \f(CW\*(C`atPhysAddress\*(C'\fR.
.ie n .IP "$l3\->\fIat_netaddr()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIat_netaddr()\fR" 4
.IX Item "$l3->at_netaddr()"
Returns reference to hash.  Maps \s-1ARP\s0 table entries to \s-1IP\s0 addresses.
.Sp
(\f(CW\*(C`ipNetToMediaNetAddress\*(C'\fR)
.Sp
If the device doesn't support \f(CW\*(C`ipNetToMediaNetAddress\*(C'\fR, this will try
the deprecated \f(CW\*(C`atNetAddress\*(C'\fR.
.SS "\s-1ARP\s0 Cache Entries"
.IX Subsection "ARP Cache Entries"
The \f(CW\*(C`atTable\*(C'\fR has been deprecated since 1991.  You should never need
to use these methods.  See \f(CW\*(C`ipNetToMediaTable\*(C'\fR above.
.ie n .IP "$l3\->\fIold_at_index()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIold_at_index()\fR" 4
.IX Item "$l3->old_at_index()"
Returns reference to map of \s-1IID\s0 to Arp Cache Entry
.Sp
(\f(CW\*(C`atIfIndex\*(C'\fR)
.ie n .IP "$l3\->\fIold_at_paddr()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIold_at_paddr()\fR" 4
.IX Item "$l3->old_at_paddr()"
Returns reference to hash of Arp Cache Entries to \s-1MAC\s0 address
.Sp
(\f(CW\*(C`atPhysAddress\*(C'\fR)
.ie n .IP "$l3\->\fIold_at_netaddr()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIold_at_netaddr()\fR" 4
.IX Item "$l3->old_at_netaddr()"
Returns reference to hash of Arp Cache Entries to \s-1IP\s0 Address
.Sp
(\f(CW\*(C`atNetAddress\*(C'\fR)
.ie n .SS "\s-1BGP\s0 Peer Table (""bgpPeerTable"")"
.el .SS "\s-1BGP\s0 Peer Table (\f(CWbgpPeerTable\fP)"
.IX Subsection "BGP Peer Table (bgpPeerTable)"
.ie n .IP "$l3\->\fIbgp_peers()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIbgp_peers()\fR" 4
.IX Item "$l3->bgp_peers()"
Returns reference to hash of \s-1BGP\s0 peer to local \s-1IP\s0 address
.Sp
(\f(CW\*(C`bgpPeerLocalAddr\*(C'\fR)
.ie n .IP "$l3\->\fIbgp_peer_id()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIbgp_peer_id()\fR" 4
.IX Item "$l3->bgp_peer_id()"
Returns reference to hash of \s-1BGP\s0 peer to \s-1BGP\s0 peer identifier
.Sp
(\f(CW\*(C`bgpPeerIdentifier\*(C'\fR)
.ie n .IP "$l3\->\fIbgp_peer_state()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIbgp_peer_state()\fR" 4
.IX Item "$l3->bgp_peer_state()"
Returns reference to hash of \s-1BGP\s0 peer to \s-1BGP\s0 peer state
.Sp
(\f(CW\*(C`bgpPeerState\*(C'\fR)
.ie n .IP "$l3\->\fIbgp_peer_as()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIbgp_peer_as()\fR" 4
.IX Item "$l3->bgp_peer_as()"
Returns reference to hash of \s-1BGP\s0 peer to \s-1BGP\s0 peer autonomous system number
.Sp
(\f(CW\*(C`bgpPeerRemoteAs\*(C'\fR)
.ie n .IP "$l3\->\fIbgp_peer_addr()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIbgp_peer_addr()\fR" 4
.IX Item "$l3->bgp_peer_addr()"
Returns reference to hash of \s-1BGP\s0 peer to \s-1BGP\s0 peer \s-1IP\s0 address
.Sp
(\f(CW\*(C`bgpPeerRemoteAddr\*(C'\fR)
.ie n .IP "$l3\->\fIbgp_peer_fsm_est_trans()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIbgp_peer_fsm_est_trans()\fR" 4
.IX Item "$l3->bgp_peer_fsm_est_trans()"
Returns reference to hash of \s-1BGP\s0 peer to the total number of times the \s-1BGP\s0 \s-1FSM\s0
transitioned into the established state
.Sp
(\f(CW\*(C`bgpPeerFsmEstablishedTransitions\*(C'\fR)
.ie n .IP "$l3\->\fIbgp_peer_in_tot_msgs()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIbgp_peer_in_tot_msgs()\fR" 4
.IX Item "$l3->bgp_peer_in_tot_msgs()"
Returns reference to hash of \s-1BGP\s0 peer to the total number of messages received
from the remote peer on this connection
.Sp
(\f(CW\*(C`bgpPeerInTotalMessages\*(C'\fR)
.ie n .IP "$l3\->\fIbgp_peer_in_upd_el_time()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIbgp_peer_in_upd_el_time()\fR" 4
.IX Item "$l3->bgp_peer_in_upd_el_time()"
Returns reference to hash of \s-1BGP\s0 peer to the elapsed time in seconds since
the last \s-1BGP\s0 \s-1UPDATE\s0 message was received from the peer.
.Sp
(\f(CW\*(C`bgpPeerInUpdateElapsedTime\*(C'\fR)
.ie n .IP "$l3\->\fIbgp_peer_in_upd()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIbgp_peer_in_upd()\fR" 4
.IX Item "$l3->bgp_peer_in_upd()"
Returns reference to hash of \s-1BGP\s0 peer to the number of \s-1BGP\s0 \s-1UPDATE\s0 messages
received on this connection
.Sp
(\f(CW\*(C`bgpPeerInUpdates\*(C'\fR)
.ie n .IP "$l3\->\fIbgp_peer_out_tot_msgs()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIbgp_peer_out_tot_msgs()\fR" 4
.IX Item "$l3->bgp_peer_out_tot_msgs()"
Returns reference to hash of \s-1BGP\s0 peer to the total number of messages
transmitted to the remote peer on this connection
.Sp
(\f(CW\*(C`bgpPeerOutTotalMessages\*(C'\fR)
.ie n .IP "$l3\->\fIbgp_peer_out_upd()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIbgp_peer_out_upd()\fR" 4
.IX Item "$l3->bgp_peer_out_upd()"
Returns reference to hash of \s-1BGP\s0 peer to the number of \s-1BGP\s0 \s-1UPDATE\s0 messages
transmitted on this connection
.Sp
(\f(CW\*(C`bgpPeerOutUpdates\*(C'\fR)
.ie n .SS "\s-1OSPF\s0 Interface Table (""ospfIfTable"")"
.el .SS "\s-1OSPF\s0 Interface Table (\f(CWospfIfTable\fP)"
.IX Subsection "OSPF Interface Table (ospfIfTable)"
.ie n .IP "$l3\->\fIospf_if_ip()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIospf_if_ip()\fR" 4
.IX Item "$l3->ospf_if_ip()"
Returns reference to hash of \s-1OSPF\s0 interface \s-1IP\s0 addresses
.Sp
(\f(CW\*(C`ospfIfIpAddress\*(C'\fR)
.ie n .IP "$l3\->\fIospf_if_area()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIospf_if_area()\fR" 4
.IX Item "$l3->ospf_if_area()"
Returns reference to hash of the \s-1OSPF\s0 area to which the interfaces connect
.Sp
(\f(CW\*(C`ospfIfAreaId\*(C'\fR)
.ie n .IP "$l3\->\fIospf_if_type()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIospf_if_type()\fR" 4
.IX Item "$l3->ospf_if_type()"
Returns reference to hash of the \s-1OSPF\s0 interfaces' type
.Sp
(\f(CW\*(C`ospfIfType\*(C'\fR)
.ie n .IP "$l3\->\fIospf_if_hello()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIospf_if_hello()\fR" 4
.IX Item "$l3->ospf_if_hello()"
Returns reference to hash of the \s-1OSPF\s0 interfaces' hello interval
.Sp
(\f(CW\*(C`ospfIfHelloInterval\*(C'\fR)
.ie n .IP "$l3\->\fIospf_if_dead()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIospf_if_dead()\fR" 4
.IX Item "$l3->ospf_if_dead()"
Returns reference to hash of the \s-1OSPF\s0 interfaces' dead interval
.Sp
(\f(CW\*(C`ospfIfRtrDeadInterval\*(C'\fR)
.ie n .IP "$l3\->\fIospf_if_admin()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIospf_if_admin()\fR" 4
.IX Item "$l3->ospf_if_admin()"
Returns reference to hash of the \s-1OSPF\s0 interfaces' administrative status
.Sp
(\f(CW\*(C`ospfIfAdminStat\*(C'\fR)
.ie n .IP "$l3\->\fIospf_if_state()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIospf_if_state()\fR" 4
.IX Item "$l3->ospf_if_state()"
Returns reference to hash of the \s-1OSPF\s0 interfaces' state
.Sp
(\f(CW\*(C`ospfIfState\*(C'\fR)
.ie n .SS "\s-1OSPF\s0 Neighbor Table (""ospfNbrTable"")"
.el .SS "\s-1OSPF\s0 Neighbor Table (\f(CWospfNbrTable\fP)"
.IX Subsection "OSPF Neighbor Table (ospfNbrTable)"
.ie n .IP "$l3\->\fIospf_peers()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIospf_peers()\fR" 4
.IX Item "$l3->ospf_peers()"
Returns reference to hash of \s-1IP\s0 addresses the neighbor is using in its
\&\s-1IP\s0 Source Addresses
.Sp
(\f(CW\*(C`ospfNbrIpAddr\*(C'\fR)
.ie n .IP "$l3\->\fIospf_peer_id()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIospf_peer_id()\fR" 4
.IX Item "$l3->ospf_peer_id()"
Returns reference to hash of neighbor Router IDs
.Sp
(\f(CW\*(C`ospfNbrRtrId\*(C'\fR)
.ie n .IP "$l3\->\fIospf_peer_state()\fR" 4
.el .IP "\f(CW$l3\fR\->\fIospf_peer_state()\fR" 4
.IX Item "$l3->ospf_peer_state()"
Returns reference to hash of state of the relationship with the neighbor
routers
.Sp
(\f(CW\*(C`ospfNbrState\*(C'\fR)
.SS "Table Methods imported from SNMP::Info"
.IX Subsection "Table Methods imported from SNMP::Info"
See \*(L"\s-1TABLE\s0 \s-1METHODS\s0\*(R" in SNMP::Info for details.
.SS "Table Methods imported from SNMP::Info::Bridge"
.IX Subsection "Table Methods imported from SNMP::Info::Bridge"
See \*(L"\s-1TABLE\s0 \s-1METHODS\s0\*(R" in SNMP::Info::Bridge for details.
.SS "Table Methods imported from SNMP::Info::EtherLike"
.IX Subsection "Table Methods imported from SNMP::Info::EtherLike"
See \*(L"\s-1TABLE\s0 \s-1METHODS\s0\*(R" in SNMP::Info::EtherLike for details.
.SS "Table Methods imported from SNMP::Info::Entity"
.IX Subsection "Table Methods imported from SNMP::Info::Entity"
See \*(L"\s-1TABLE\s0 \s-1METHODS\s0\*(R" in SNMP::Info::Entity for details.
.SS "Table Methods imported from SNMP::Info::PowerEthernet"
.IX Subsection "Table Methods imported from SNMP::Info::PowerEthernet"
See \*(L"\s-1TABLE\s0 \s-1METHODS\s0\*(R" in SNMP::Info::PowerEthernet for details.
.SS "Table Methods imported from SNMP::Info::IPv6"
.IX Subsection "Table Methods imported from SNMP::Info::IPv6"
See \*(L"\s-1TABLE\s0 \s-1METHODS\s0\*(R" in SNMP::Info::IPv6 for details.