34 Dell PowerVault 7x0N Systems — Connecting to ATM and FDDI Networks
NAME
elarp - Displays or manipulates MAC-to-ATM address mappings
SYNOPS IS
elarp show [ -elan elan | -mac mac ]
[ -unit unit ]
elarp delete -all | -elan elan | -mac mac [ -unit unit ]
DESCRIPTION
elarp is a tool to display and delete MAC-to-ATM address ARP cache entries and
associated Switch Virtual Circuits (SVCs). Used in conjunction with the ATM
Forum LAN Emulation Client (LEC).
COMMANDS
show
The -elan flag will display all LANE ARP entries for elan elan. If the -mac flag is
used, the ARP entry for MAC address MAC is displayed. The time to live (TTL) in
seconds for both the connections and address mappings are displayed. If no flags
are given, all current LANE ARP entries are displayed. If more than one MAC
address is associated with an ATM address, then all the MAC-to-ATM address
mappings are shown in a single entry.
delete
The -all and -elan flags will delete all dynamic address mappings from the ARP
cache and close all SVCs to all hosts in the cache, or all hosts on elan elan,
respectively. The -mac flag will delete the single dynamic address mapping and
SVC for MAC.
The unit number entered is the configured adapter unit number of an ELAN. The
unit number displayed is the adapter unit number of a connection. The connec-
tion unit number may differ from the configured unit number if UNI loadbalancing/
failover is enabled.
CLUSTER CONSIDERATIONS
In takeover mode, the elarp command only affects the arp entries of ELANs on
the live filer, and in partner mode the elarp command only affects the arp entries
of ELANs on the failed filer. The unit number displayed is always the adapter unit
number on the live filer, even in partner mode.
EXAMPLE
The following examples display an address mapping for a host on elan my_elan.
% elarp show -elan my_elan
0:20:48:10:d:65 at 0x45.000580ffe1000000.f215149c002048100d65.02
ELAN=my_elan state=valid addrTTL=300 vcTTL=1200 unit=1 vpi/vci=0/49
65CNPbk0.book Page 34 Monday, September 13, 1999 1:43 PM