Enable gvrp, Disable gvrp | D-Link TM DES-6500 specification

xStack DES-6500 Modular Layer 3 Chassis Ethernet Switch CLI Manual

DES-6500:4#config gvrp 1:1-1:4 state enabled ingress_checking enabled acceptable_frame tagged_only pvid 2

Command: config gvrp 1:1-1:4 state enabled ingress_checking enabled acceptable_frame tagged_only pvid 2

Success.

DES-6500:4#

enable gvrp

Purpose	Used to enable GVRP on the Switch.
Syntax	enable gvrp
Description	This command, along with disable gvrp below, is used to enable
	and disable GVRP globally on the Switch, without changing the
	GVRP configuration on the Switch.
Parameters	None.
Restrictions	Only administrator-level users can issue this command.

Example usage:

To enable the generic VLAN Registration Protocol (GVRP):

DES-6500:4#enable gvrp

Command: enable gvrp

Success.

DES-6500:4#

disable gvrp

Purpose	Used to disable GVRP on the Switch.
Syntax	disable gvrp
Description	This command, along with enable gvrp below, is used to enable
	and disable GVRP on the Switch, without changing the GVRP
	configuration on the Switch.
Parameters	None.
Restrictions	Only administrator-level users can issue this command.

Example usage:

To disable the Generic VLAN Registration Protocol (GVRP):

DES-6500:4#disable gvrp

Command: disable gvrp

Success.

DES-6500:4#

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D-Link TM DES-6500 manual Enable gvrp, Disable gvrp

Contents

CLI Manual Table of Contents Page Initial CLI screen Introduction Setting the Switch’s IP Address Assigning an IP Address Connecting to the Switch Using the Console CLI Initial Console Screen Example Command Parameter Help Available Commands Prompt Vertical bar Command SyntaxAngle brackets Square brackets Reset config Reset config systemBraces Command Parameters Basic Switch Commands Create account Config accountCreate admin user username Config account username Delete account username Show accountDelete account Show account Show config currentconfig configinNVRAM Show config Show session Show session Show switch Show devicestatus Show serialportShow serialport Show devicestatus Enable clipaging Config serialportEnable clipaging Config serialport autologout never 2minutes Enable telnet Disable clipaging Enable web Disable telnet Save Disable webDisable web DES-65004#disable web Command disable web Success DES-65004#reset config Command reset config Success RebootReset Reboot Config commandprompt LoginLogout Config greetingmessage default Config greetingmessage Success DES-65004# Show greetingmessageShow greetingmessage Config ports Switch Port Commands Show ports portlist description Flowcontrol enabled disabled Enable or disable flow controlLearning enabled disabled − Enables or disables the MAC Show ports Example usage To display port descriptions Config portsecurity ports Port Security Commands Show portsecurity ports portlist Show portsecurity Delete portsecurityentryvlanname vlanname 32 port Delete portsecurityentryvlannamePort macaddress macaddr MD5 DES or SHA DES Network Management Snmp Commands Create snmp user Level will be used Sha − Specifies that the HMAC-SHA-96 authentication Show snmp user Delete snmp userDelete snmp user SNMPname Excluded Create snmp viewShow snmp user Create snmp view viewname 32 oid viewtype included Show snmp view viewname Delete snmp viewShow snmp view Delete snmp view viewname 32 all oid Create snmp community communitystring 32 view viewname Create snmp communityReadonly readwrite Show snmp community communitystring Delete snmp communityShow snmp community Delete snmp community communitystring Show snmp engineID Config snmp engineIDConfig snmp engineID snmpengineID Show snmp engineID Viewname Create snmp groupCreate snmp group groupname 32 v1 v2c Noauthnopriv authnopriv authpriv readview Delete snmp group groupname Delete snmp group Show snmp groups Show snmp groups Create snmp host ipaddr v1 v2c v3 noauthnopriv Create snmp hostAuthnopriv authpriv authstring Delete snmp host ipaddr authstring Delete snmp host Create trustedhost ipaddr Show snmp hostCreate trustedhost Show snmp host ipaddr Show trustedhost Create trustedhost command aboveShow trustedhost Delete trustedhost Enable snmp authenticatetraps Enable snmp trapsEnable snmp authenticatetraps Enable snmp traps Disable snmp authenticatetraps Disable snmp trapsShow snmp traps Config snmp systemlocation swlocation Config snmp systemcontactConfig snmp systemlocation Config snmp systemcontact swcontact Enable rmon Config snmp systemnameEnable rmon Config snmp systemname swname DES-65004#disable rmon Command disable rmon Success Disable rmonDES-65004#enable rmon Command enable rmon Success Disable rmon Alllinecard cpu unitid 1-8 cfgfromTFTP ipaddr Switch Utility CommandsDownload FirmwarefromTFTP ipaddr pathfilename 64 unit Upload cfgtoTFTP logtoTFTP ipaddr pathfilename Download configuration Done DES-65004#Upload Done Ping Ping ipaddr times value 1-255 timeout secTraceroute Enable autoconfig Enable autoconfig Download configuration Show autoconfig Disable autoconfigShow autoconfig Disable autoconfig Show packet ports Network Monitoring CommandsShow packet ports portlist Show error ports portlist Show error ports Show utilization ports cpu Show utilization Show stackinformation Show stackinformation Box Count DES-65004# Clear countersTopology Current state Clear log DES-65004#clear log Command clear log SuccessClear log Show log Disable syslog Enable syslog Informational informational messages Show syslogCreate syslog host Show syslog Create syslog host Config syslog host Config syslog host Facility local0 local1 local2 local3 local4 local5 local6 Config syslog host allConfig syslog host all severity informational warning all Local7 udpport udpportnumber state enabled Informational informational messages Udpport udpportnumber − Specifies the UDP port number State enabled disabled − Allows the sending of syslogMessages to the remote host, specified above, to be enabled Disabled Show syslog host index Delete syslog hostShow syslog host Delete syslog host index 1-4 all Config systemseverity trap log all critical warning Config systemseverityInformation Show systemseverity Show systemseverity Multiple Spanning Tree Protocol Mstp Commands DES-65004#enable stp Command enable stp Success Enable stpDisable stp Enable stp Config stp Config stp version Lbdrecovertimer 0 value 60-1000000 This field will set Lbd enable disable Config stp portsConfig stp ports portlist externalCost auto value True false p2p true false auto state enable disable Create stp instanceid value Create stp instanceid Instanceid Config stp instanceidConfig stp instanceid value 1-15 addvlan removevlan Vidlist Delete stp instanceid value Config stp priorityConfig stp priority value 0-61440 instanceid value Delete stp instanceid Config stp mstports Config stp mstconfigid Config stp mstports Show stp Max Age Forward DelayShow stp Show stp instanceid value Show stp portsShow stp instanceid Show stp ports portlist Show stp mstconfigid Show stp mstconfigid 4094 DES-65004# Vid list Create fdb Forwarding Database CommandsCreate fdb vlanname 32 macaddr port port Create multicastfdb vlanname 32 macaddr Config multicastfdbConfig multicastfdb vlanname 32 macaddr add Create multicastfdb Delete multicastfdb vlanname 32 macaddr Delete multicastfdb Delete fdb vlanname 32 macaddr Config fdb agingtimeConfig fdb agingtime sec Delete fdb Clear fdb DES-65004#clear fdb all Command clear fdb all SuccessClear fdb vlan vlanname 32 port port all Show fdb Show multicastfdb Self Show ipfdbShow ipfdb ipaddr Page Config traffic control Broadcast Storm Control Commands Multicast enabled disabled − Enables or disables multicast Broadcast enabled disabled − Enables or disables broadcast Config traffic controlrecover portlist all Config traffic controlrecoverDeciding when incoming packets exceed the Threshold value Seconds with the default setting of 5 seconds Show traffic control Config traffic controltrap DLF QOS Commands Config bandwidthcontrol portlist all rxrate nolimit Config bandwidthcontrolValue 1-9999 txrate nolimit value Show bandwidthcontrol portlist Show bandwidthcontrolValue 1-9999 − Specifies the packet limit, in Mbps, that Above ports will be allowed to transmit Config scheduling classid 0-6 maxpacket value Config scheduling Weighted round-robin WRR method of forwarding packets as Show scheduling Config 802.1p userpriorityConfig 802.1p userpriority priority 0-7 classid Show scheduling Show 802.1p userpriority Show 802.1p userpriority Show 802.1p defaultpriority portlist Config 802.1p defaultpriorityShow 802.1 defaultpriority Config 802.1p defaultpriority portlist all priority Config scheduling mechanism strict weightfair Config schedulingmechanism Show schedulingmechanism Show schedulingmechanism Disable holprevention Enable holpreventionDisable holprevention Enable holprevention Show holprevention Show holprevention Both Port Mirroring CommandsConfig mirror port add Config mirror port port add source ports portlist rx tx Config mirror port port delete source port portlist rx tx Config mirror port delete Disable mirror Enable mirror Show mirror Show mirror Create vlan Vlan Commands 119 Encap ethernet llc snap all Specifies that the Switch will Delete vlan vlanname Config vlan addDES-65004#delete vlan Command delete vlan Success Delete vlan Advertisement enabled disabled − Enables or disables Gvrp Config vlan deleteConfig vlan vlanname 32 delete portlist Taggedonly admitall pvid vlanid Config gvrpConfig gvrp portlist all state enabled disabled Ingresschecking enabled disabled acceptableframe Disable gvrp Enable gvrp Show vlan vlanname DES-65004#show vlan Command show vlanVlan Name Default Show vlan Show gvrp portlist Show gvrpIngress Checking Acceptable Frame Type Create linkaggregation Link Aggregation CommandsCreate linkaggregation groupid value 1-32 type lacp Delete linkaggregation groupid Config linkaggregationConfig linkaggregation groupid value 1-32 masterport Port ports portlist state enabled disabled 129 Ipdestination ipsourcedest Config linkaggregation algorithmConfig linkaggregation algorithm macsource Macdestination macsourcedest ipsource Show linkaggregation groupid value 1-32 algorithm Show linkaggregation Config lacpport portlist mode active passive Config lacpport Show lacpport portlist Show lacpport Create ipif IP Commands Including Multiple IP Interfaces PERCreate ipif ipifname 12 networkaddress vlanname Dhcp Config ipifConfig ipif ipifname 12 ipaddress networkaddress Vlan vlanname 32 state enabled disabled bootp Enable ipif ipifname 12 all Enable ipifDES-65004#enable ipif s2 Command enable ipif s2 Success Delete ipif Disable ipif Show ipif ipifname Show ipif Config igmp Igmp Commands Including Igmp Show igmp Lastmemberqueryinterval value 1-25 state enabledShow igmp ipif ipifname Show igmp group group group ipif ipifname Show igmp group 142 Sec 1-16711450 routertimeout sec Igmp Snooping CommandsConfig igmpsnooping Config igmpsnooping vlanname 32 all hosttimeout Queryinterval sec 1-65535 maxresponsetime sec Config igmpsnooping querierConfig igmpsnooping querier vlanname 32 all Lastmemberqueryinterval sec 1-25 state enabled Enable igmpsnooping forwardmcrouteronly Enable igmpsnoopingLastmemberqueryinterval sec 1-25 − The maximum amount Config routerports vlanname 32 add delete portlist Disable igmpsnoopingConfig routerports Disable igmpsnooping forwardmcrouteronly Config routerportsforbidden vlanname 32 add delete Config routerportsforbiddenPortlist Forbidden Show routerportsShow igmpsnooping Show routerports vlan vlanname 32 static dynamic Show igmpsnooping group Show igmpsnooping forwarding vlan vlanname Show igmpsnooping forwarding 151 Access Authentication Control Commands 153 Disable authenpolicy Enable authenpolicyDisable authenpolicy Enable authenpolicy Show authenpolicy Create authenlogin methodlistnameCreate authenlogin methodlistname string Show authenpolicy Method tacacs xtacacs tacacs+ radius servergroup Config authenloginConfig authenlogin default methodlistname string Concerning the enable admin command Configured Radius server Authenticated using the Tacacs protocol from a remoteAuthenticated using the Xtacacs protocol from a remote Authenticated using the Radius protocol from a previously Show authenlogin default methodlistname string 15 all Delete authenlogin methodlistnameShow authenlogin Delete authenlogin methodlistname string Create authenenable methodlistname string Create authenenable methodlistname Config authenenable default methodlistname string Config authenenableString 15 localenable none Require the user to be authenticated using a user-defined Authenticated using the TACACS+ protocol from a remoteAuthenticated using the Radius protocol from a remote Radius server previously implemented on the Switch Show authenenable default methodlistname string 15 all Delete authenenable methodlistnameShow authenenable Delete authenenable methodlistname string Config authen application console telnet ssh http all Config authen applicationLogin enable default methodlistname string Show authen application Show authen application Create authen serverhost ipaddr protocol tacacs xtacacs Default DES-65004#None timeout int 1-255 retransmit Create authen serverhost Config authen serverhost ipaddr protocol tacacs xtacacs Config authen serverhost Delete authen serverhost ipaddr protocol tacacs xtacacs Delete authen serverhostTacacs+ radius Show authen serverhost Show authen serverhost Create authen servergroup Config authen servergroup Server host is using the Radius authentication protocol Server host is using the Tacacs authentication protocolServer host is using the Xtacacs authentication protocol Server host is using the TACACS+ authentication protocol Show authen servergroup string Delete authen servergroupShow authen servergroup Delete authen servergroup string Tacacs 10.53.13.94 Config authen parameter responsetimeoutConfig authen parameter responsetimeout int Darren 10.53.13.2 Parameter attempt int 1-255 Set the maximum number Config authen parameter attemptConfig authen parameter attempt int Show authen parameter DES-65004#enable admin Password Enable adminConfig admin localenable Enable admin 175 SSH Commands Disable ssh Enable sshConfig ssh authmode Show ssh authmode Show ssh authmode Show ssh server Config ssh server Hostname string hostnameIP string ipaddr Config ssh userConfig ssh user username 15 authmode Hostbased Password Publickey None Show ssh user authmode Config ssh algorithm Show ssh algorithm Show ssh algorithm 183 SSL Commands Enable ssl Disable ssl ciphersuite RSAwithRC4128MD5 Disable sslDES-65004#disable ssl Command disable ssl Success Show ssl cachetimeout Config ssl cachetimeoutShow ssl cachetimeout Config ssl cachetimeout timeout value Download certificate Show ssl 189 802.1X Commands Disable Enable Show 802.1x user Create 802.1x userShow 802.1x user Create 802.1x user username Delete 802.1x user username Show 802.1x authconfigurationShow 802.1x authconfiguration ports portlist all Delete 802.1x user Forces the Authenticator of the port to become Authorized Show 802.1x authstate ports portlist all Show 802.1x authstate Next Config 802.1x authmodeConfig 802.1x authmode portbased macbased Quit Config 802.1x capability ports portlist all authenticator Config 802.1x capability ports Config 802.1x authparameter Config 802.1x authprotocol local radiuseap Config 802.1x authprotocolReauthperiod sec 1-65535 − Configures the time interval Enablereauth enable disable − Determines whether or not Config 802.1x init portbased ports portlist all Config 802.1x initMacbased ports portlist all macaddress macaddr Config 802.1x reauth portbased ports portlist all Config 802.1x reauth ports Config radius delete Config radius add Passwd 32 authport udpportnumber Config radiusConfig radius serverindex 1-3 ipaddress serverip key Show radius Show acctclient Show authclient Show authdiagnosticsShow authclient Show authsessionstatistics Show authstatistics ports portlist all Show authstatistics 208 Access Control List ACL Commands Including CPU Create accessprofile profileid 1 ip sourceipmask 211 Command Parameters Sourcemac macmask destinationmac macmask Create accessprofile for EthernetAccessprofile command, below Create accessprofile profileid value 1-8 ethernet vlan Config accessprofile profileid for Ethernet Delete accessid value 1-65535 − Use this command to delete a Create accessprofile IP Mask hex 0x0-0xffffffff 0x0-0xffff dstportmask hex 0x0-xffff protocolid user Userdefine hex 0x0-0xfffffff − Enter a hexidecimal value Config accessprofile profileid IP 218 Their header Create accessprofile packet content mask Config accessprofile profileid packet content mask Written to the Dscp field of an incoming packet that meets May be specified for the Packet Content access profileOver-write the value in the Dscp field of the packet Flowlabel sourceipv6mask ipv6mask Create accessprofile ipv6Config accessprofile command, below Create accessprofile ipv6 profileid value 1-8 class Ipv6addr port port permit priority value Config accessprofile profileid ipv6Value 1-65535 ipv6 class value 0-255 flowlabel hex 0xfffff sourceipv6 ipv6addr destionationipv6 Specified for the IPv6 access profile Delete accessprofileDelete accessprofile profileid value Show accessprofile profileid value Show accessprofile Create cpu accessprofile 228 Delete cpu accessprofile profileid value Delete cpu accessprofile Config cpu accessprofile 231 Userdefinemask hex 0x0-0xffffffff − Specifies that the rule Disable cpuinterfacefiltering Enable cpuinterfacefilteringShow cpuinterfacefiltering Show cpuaccessprofile profileid value Show cpuaccessprofile Safeguard Engine Commands Rising value 20-100 falling value 20-100 traplog Config safeguardengineConfig safeguardengine state enable disable utilization Enable disable mode strict fuzzy Show safeguardengine Show safeguardengine All portlist Traffic Segmentation CommandsConfig trafficsegmentation Config trafficsegmentation portlist all forwardlist null Show trafficsegmentation portlist Show trafficsegmentation Link Single IP Management Commands Command Parameters Disable sim Enable simShow sim Candidates candidateid 1-100 Entering this parameter will Group commandermac macaddr Entering this parameter will 244 Example usage To view SIM neighbors Config simgroup Reconfig Config sim commander groupname groupname Config simCandidate dpinterval 30-90 holdtime sec To change the hold time of the discovery protocol Download simms Download simms firmware configuration ipaddrPathfilename members mslist 1-32 all Upload simms configuration ipaddr pathfilename Upload simms configurationMemberid Interval int Time and Sntp CommandsConfig sntp Config sntp primary ipaddr secondary ipaddr poll Show sntp Enable sntpEnable sntp Show sntp Config time Disable sntp Config timezone operator + hour gmthour Config dstMin minute DST Show time Show time Create arpentry ipaddr macaddr ARP CommandsCreate arpentry Delete arpentry Show arpentry Config arpaging timeDES-65004#delete arpentry Command delete arpentry Success Config arpaging time value Show arpentry ipaddress ipaddr Show arpentry ipaddress Clear arptable DES-65004#clear arptable Command clear arptable SuccessClear arptable Enable vrrp Vrrp CommandsEnable vrrp ping Disable vrrp ping Disable vrrpDES-65004#enable vrrp Command enable vrrp Success DES-65004#enable vrrp ping Command enable vrrp ping Success Vrid vrid 1-255 ipif ipifname 12 ipaddress ipaddr state Enable disable priority int 1-254 advertisementintervalCriticalipstate enable disable Create vrrp vrid Criticalip ipaddr criticalipstate enable disable Config vrrp vridConfig vrrp vrid vrid 1-255 ipif ipifname 12 state enable Disable priority int 1-254 ipaddress ipaddr Disable Config vrrp ipif Show vrrp ipif ipifname 12 vrid vrid Show vrrp Vrid Delete vrrp Create iproute networkaddress ipaddr metric Routing Table CommandsPrimary backup Create iproute Delete iproute Create iproute defaultCreate iproute default ipaddr metric Delete iproute networkaddress ipaddr primary backup Show iproute networkaddress static rip ospf Delete iproute defaultDelete iproute default ipaddr Show iproute Mettype 1 2 metric value Route Redistribution CommandsCreate route redistribute dst ospf src Create route redistribute dst ospf src static rip local Src all internal external type1 type2 inter+e1 inter+e2 − Create route redistribute dst rip srcCreate route redistribute dst rip src all internal external Type1 type2 inter+e1 inter+e2 metric value Static Not applicable Config route redistribute dst ospf src Metric value Config route redistribute dst rip srcConfig route redistribute dst rip src local static ospf all Internal external type1 type2 inter+e1 inter+e2 Delete route redistribute dst rip ospf src rip static local Delete route redistributeOspf Show route redistribute dst rip ospf src rip static local Show route redistributeType-2 Total Entries DES-65004# Config dhcprelay Dhcp Relay CommandsConfig dhcprelay hops value 1-16 time sec Config dhcprelay delete ipif ipifname 12 ipaddr Config dhcprelay add ipifConfig dhcprelay delete ipif Config dhcprelay add ipif ipifname 12 ipaddr Config dhcprelay option82 check enable disable Config dhcprelay option82 stateConfig dhcprelay option82 check Config dhcprelay option82 state enable disable Show dhcprelay ipif ipifname Config dhcprelay option82 policyConfig dhcprelay option82 policy replace drop keep Show dhcprelay Enable dhcprelay Enable dhcprelayDES-65004#enable dhcprelay Command enable dhcprelay Success Disable dhcprelay Disable dhcprelay Add delete static domainname 32 ipaddr DNS Relay CommandsConfig dnsr Config dnsr primary secondary nameserver ipaddr Enable dnsr cache static Enable dnsrDES-65004#enable dnsr Command enable dnsr Success Disable dnsr cache static Disable dnsrDES-65004#disable dnsr Command disable dnsr Success Show dnsr Config rip RIP Commands DES-65004#enable rip Command enable rip Success Enable ripDisable rip Enable rip Show rip DES-65004#disable rip Command disable rip SuccessShow rip ipif ipifname Neighbortimeout second 1-65535 − The time period for Config dvmrpConfig dvmrp ipif ipifname 12 all metric value Probe sec 1-65535 neighbortimeout sec DES-65004#enable dvmrp Command enable dvmrp Success Enable dvmrpDisable dvmrp Enable dvmrp Show dvmrp neighbor Show dvmrp routingtable Ipifname Show dvmrp nexthopSystem 10.2.1.123 250 Total Entries DES-65004# Show dvmrp nexthop ipaddress networkaddress ipif 30.0.0.0/8 System Leaf Ip2 Show dvmrp10.0.0.0/8 Ip3 20.0.0.0/8 System Leaf Ip3 Jpinterval sec 1-18724 state enabled disabled PIM CommandsConfig pim Config pim ipif ipifname 12 all hello sec Disable pim Enable pim Show pim ipif ipifname Show pim neighborShow pim Show pim neighbor ipif ipifname 12 ipaddress 298 Show ipmc cache IP Multicasting CommandsShow ipmc cache group group ipaddress Show ipmc ipif ipifname 12 protocol inactive dvmrp Show ipmcPim Config md5 key keyid 1-255 password MD5 Configuration CommandsConfig md5 key Create md5 key keyid 1-255 password Delete md5 key keyid DES-65004# delete md5 key Command delete md5 key SuccessDelete md5 key Show md5 Ospf Configuration Commands Enable ospf Config ospf routeridEnable ospf Config ospf routerid ipaddr Show ospf Disable ospf Advertise 10.1.1.1 20.1.1.1 None Delete ospf area Create ospf area Show ospf area Config ospf areaConfig ospf area areaid type normal stub Stubsummary enabled disabled − Allows the Ospf area Delete ospf hostroute ipaddr Create ospf hostrouteDelete ospf hostroute Create ospf hostroute ipaddr area areaid metric Show ospf hostroute ipaddr Config ospf hostrouteConfig ospf hostroute ipaddr area areaid metric Show ospf hostroute Delete ospf aggregation Create ospf aggregation Show ospf aggregation Config ospf aggregationConfig ospf aggregation areaid networkaddress Advertise enabled disabled − Allows for the advertisement Asextlink Show ospf lsdbShow ospf lsdb areaid areaid advertiserouter Ipaddr type rtrlink netlink summary assummary Show ospf neighbor ipaddr DES-65004#show ospf lsdb Command show ospf lsdb AreaShow ospf neighbor Show ospf virtualneighbor Keyid 1-255 metric value 1-65535 state enabled Config ospf ipifConfig ospf ipif ipifname 12 area areaid priority Authentication none simple password 8 md5 Metric value 1-65535 state enabled disabled Config ospf allConfig ospf all area areaid priority value Authentication none simple password 8 md5 keyid Show ospf ipif ipifname Show ospf ipif Show ospf all Show ospf all Create ospf virtuallink areaid neighborid Create ospf virtuallink Config ospf virtuallink areaid neighborid Config ospf virtuallink Show ospf virtuallink areaid neighborid Delete ospf virtuallinkShow ospf virtuallink Delete ospf virtuallink areaid neighborid 322 Enable jumboframe Jumbo Frame CommandsEnable jumboframe Disable jumboframe Show jumboframe DES-65004#show jumboframe Command show jumboframe OffShow jumboframe Command History List Show commandhistory Config commandhistory value Config commandhistory Technical Specifications Packet Filtering Transmission MethodRAM Buffer Filtering Address Table Ethernet StandardProtocols Data Transfer Rates 331