Allied Telesis 86251-08 manual Down device unreachable

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Patch 86251-08 For Rapier Series Switches

SHOW IP ADVERTISE

59

To create a polling instance, use the command:

ADD PING POLL=poll-idIPADDRESS={ipaddipv6add[%interface]} [CRITICALINTERVAL=1..65535] [DESCRIPTION=poll-description] [FAILCOUNT=1..100] [LENGTH=4..1500] [NORMALINTERVAL=1..65535] [SAMPLESIZE=1..100] [SIPADDRESS={ipaddipv6add}] [TIMEOUT=1..30] [UPCOUNT=1..100]

•where poll-idis a number from 1 to 100, and identifies the polling instance in the trigger commands and in other PING POLL commands. The router or switch can poll up to 100 IP addresses at once.

The NORMALINTERVAL parameter specifies the time period between pings when the device is reachable. By default, this is set to 30 seconds. The CRITICALINTERVAL parameter specifies the time period between pings when the router or switch has not received a reply to at least one ping and when the device is unreachable. The default is 1 second. The CRITICALINTERVAL enables the router or switch to quickly observe changes in the state of the device, and should be set to a much lower value than the

NORMALINTERVAL.

The number of pings that the router or switch will examine to consider a change in state is controlled by three parameters: FAILCOUNT, SAMPLESIZE, and UPCOUNT. The FAILCOUNT is the number of pings that must be unanswered for the router or switch to consider the device unreachable. The default is 5. The SAMPLESIZE is the total number of pings within which the FAILCOUNT number of pings must be unanswered. If SAMPLESIZE and FAILCOUNT are the same, the unanswered pings must be consecutive. If SAMPLESIZE is greater than FAILCOUNT, a device that does not always reply to pings may be declared unreachable. By default, SAMPLESIZE is equal to FAILCOUNT. The UPCOUNT is the number of consecutive pings that must be answered for the router or switch to consider the device reachable again. The default is 30. The interaction between these parameters is shown in Figure 3.

Figure 3: The interaction between states and parameters for ping polling.

UP: device reachable

Substates of UP:

Up:No failed pings in SAMPLESIZE window. Poll frequency of NORMALINTERVAL.

Critical Up:

At least 1 failed ping in SAMPLESIZE window.

 

Poll frequency of CRITICALINTERVAL.

after UPCOUNT consecutive ping replies

LINKUP trigger activated

after FAILCOUNT failed pings in SAMPLESIZE window

LINKDOWN trigger activated

DOWN: device unreachable

Substates of DOWN:

 

Down:

Last ping failed

 

 

Poll frequency of CRITICALINTERVAL.

Critical Down: Last ping succeeded

Poll frequency of CRITICALINTERVAL.

ping-trigger2

Patch 86251-08 for Software Release 2.5.1 C613-10356-00 REV I

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Contents Introduction Patch For Rapier Series SwitchesPCR Module BGP Level FeaturesPCR Module IPG Level PCR 03359 Module Core LevelPCR Module FIRE, Utility Level PCR 03684 Module Core LevelPCR Module TTY, User Level PCR Module STP LevelPCR Module Firewall Level PCR Module Isakmp LevelPCR Module Ipsec Level PCR Module SW56 LevelPCR Module Utility Level PCR Module SWI LevelPCR Module IGP Level PCR 31001 Module Dhcp LevelPCR Module BGP Level PCR 31098 Module Dhcp Level PCR 31081 Module VRRP, IP, TCP, TelnetPCR Module File Level PCR Module FFS LevelPCR Module IPG PCR 31106 Module MLD LevelPCR Module IPX2 Level PCR 02414 Module IPV6, SWI, IPG, VlanPCR 03751 Module Mlds Level PCR Module OSPF, IPG LevelPCR Module ETH, IPG, IPv6, IPX Level PCR 03801 Module Mlds Level PCR Module FILE, INSTALL, SCR LevelPCR Module Install Level PCR Module ETH LevelPCR 03843 Module Dhcp Level PCR 03823 Module Vlan LevelPCR Module TTY Level PCR Module IPG, IPV6 LevelPCR 03870 Module SWI, Vlan Level PCR Module DHCP, Telnet LevelPCR Module Ikmp Level PCR Module Switch LevelPCR Module IP ARP Level PCR Module Firewall Network affecting No PCR Module L2TP Level PCR Module Ospf Network affecting NoPCR 03515 Module Dhcp Level PCR Module PRI LevelPCR Module PPP Level PCR 03547 Module Dhcp Level PCR Module BGP, TCP LevelPCR Module HTTP, Firewall Level PCR Module Http Level PCR Module Ping Level PCR Module FIREWALL, IPG LevelPCR 03584 Module MLD Level PCR Module STP, SWI Level PCR 03615 Module Load LevelPCR 03618 Module Dhcp Level PCR 03647 Module Snmp Level PCR 03708 Module Dhcp Level PCR Module PKI LevelPCR 03691 Module Dvmrp Level PCR 03698 Module Dvmrp LevelPCR Module IP Level PCR Module PPP, VJC LevelPCR Module Rsvp Level PCR Module Vrrp LevelFeatures PCR Module SSL Level PCR 03371 Module Dhcp LevelPCR Module IPSEC, Ikmp Level PCR 03429 Module SWI, Vlan Level PCR 03405 Module Stream LevelPCR 03410 Module VLAN, Core Level PCR 03424 Module Dhcp LevelPCR Module FR Level PCR 03436 Module IP, Dhcp LevelPCR Module IPX Level PCR 03443 Module Dhcp LevelPCR 03465 Module Dhcp Level PCR Module BGP, Firewall Level PCR 03492 Module HTTP, Load LevelPCR 03515 Module Dhcp Level PCR 03094 Module STP, Vlan Level PCR 02577 Module IPG, LOG LevelPCR Module GUI Level PCR 03089 Module Core LevelPCR Module Classifier Level PCR 03096 Module Vlan LevelPCR Module PIM, DVMRP, IPG Level PCR 03109 Module LOG LevelPCR Module Port Level PCR Module ETH, IPG LevelPCR Module IPG, SWI Level PCR Module Cure LevelPCR 03167 Module Dvmrp Level PCR 03153 Module ACC LevelPCR Module PCI Level PCR Module User Level PCR Module CORE, FFS, TTY LevelPCR Module FIREWALL, LB Level PCR Module LB LevelPCR 03229 Module Load Level PCR 03205 Module Dhcp LevelPCR 03247 Module MVR Level PCR 03239 Module QOS LevelPCR Module SWI, IPG, PIM Level PCR Module VLAN, IPG Level PCR 03256 Module MLD LevelPCR Module DHCP, Q931, Telnet Level PCR Module IP, SWI Level PCR 03334 Module MVR LevelPCR 03336 Module Core Level PCR 03346 Module Snmp LevelVlan PCR 03370 Module MVR LevelPCR 03388 Module Dhcp Level ADD PPP Create PPP Delete PPP SET PPP Show PPP PCR Module IPV6 Network affecting No PCR 03067 Module Dhcp LevelPCR 03068 Module SWI, QOS Level PCR 03077 Module Core LevelPCR Module IPG, ETH Network affecting No PCR Module SWI Network affecting NoPCR Module IPG Network affecting No PCR Module PCI Network affecting NoPCR Module TM Network affecting No Availability Icmp Router Discovery AdvertisementsPCR Module TELNET, PING, IPV6, Network affecting No PCR Module TCP Network affecting NoRouter Advertisement Messages To change these settings, use one of the commands ADD IP Interface SET IP Interface ADD IP Advertise Interface Enable IP AdvertiseDisable IP Advertise Delete IP Advertise Interface SET IP Advertise Interface Show IP Advertise Example output from the Show IP Advertise commandSame subnet Adopting the Vrrp IP Address MLD Snooping Ping Polling of Device Reachability Down device unreachable Icmp Redirect Enable and Disable Icmp MessagesDisable IP Icmpreply CommandsShow IP Icmpreply Static IgmpConfiguration Example Show IP Igmp CommandsSee Also Show IP Igmp Debug ADD IP Igmp Destination Create IP Igmp Destination Destroy IP Igmp Destination Delete IP Igmp DestinationEnable IP Igmp Debug Disable IP Igmp DebugShow IP Igmp Debug Checking the Port Map on Rapier16fi SwitchesHow to check that the port map is correct How to restore the correct port map Force Eprom download Y ? PPPoE Client on Vlan InterfacesADD PPP Create PPP SET PPP Delete PPPShow PPP VLANn-servicename, TNL- callnameShow PPP
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