H3C S5500-SI Series Operation Manual
Also see for S5500-SI Series: ConfigurationOperation manualConfiguration guideConfiguration guideConfiguration guide
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Contents
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Operation Manual – IPv6 ConfigurationH3C S5500-SI Series Ethernet Switches Chapter 1 IPv6 Configuration1-191.4 Configuring PMTU Discovery1.4.1 Configuring a Static PMTU for a Specified IPv6 AddressYou can configure a static PMTU for a specified IPv6 address. When forwardingpackets, an interface compares the MTU of the interface with the static PMTU of thespecified destination IPv6 address, and uses the smaller one to fragment packets.Follow these steps to configure a static PMTU for a specified address:To do… Use the command… RemarksEnter system view system-view —Configure a staticPMTU for a specifiedIPv6 addressipv6 pathmtu ipv6-address[ value ]RequiredBy default, no staticPMTU is configured.1.4.2 Configuring the Aging Time for PMTUAfter the MTU of the path from the source host to the destination host is dynamicallydetermined, the source host uses this MTU to send subsequent packets to thedestination host. After the aging time expires, the dynamically determined PMTU isdeleted and the source host re-determines the MTU to send packets according to thePMTU mechanism.The aging time is invalid for static PMTU.Follow these steps to configure the aging time for PMTU:To do… Use the command… RemarksEnter system view system-view —Configure the aging timefor PMTUipv6 pathmtu ageage-timeOptional10 minutes by default.1.5 Configuring IPv6 TCP PropertiesThe IPv6 TCP properties you can configure include:z synwait timer: When a SYN packet is sent, the synwait timer is triggered. If noresponse packet is received before the synwait timer expires, the IPv6 TCPconnection establishment fails.z finwait timer: When the IPv6 TCP connection status is FIN_WAIT_2, the finwaittimer is triggered. If no packet is received before the finwait timer expires, the IPv6TCP connection is terminated. If FIN packets are received, the IPv6 TCPconnection status becomes TIME_WAIT. If other packets are received, the finwait |
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