Hitachi GR2000 Network Router User Manual


 
utilizes InverseARP protocol in compliance with RFC1293/RFC2390. Since
InverseARP is not a mandatory requirement, certain products may not support it
Consequently, there may be cases when the frping command issued from GR2000
ends in a timeout even the target device is in the reachable status.
4.5.2.4 Conditions When Submitting Application Form to Frame Relay Network
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4.5.2.5 Packet Length
If the MTU setting of GR2000 and that of the other end device is different, packet
be relayed may sometimes be discarded. Specifically, such discarding of packets
occurs on the receiving device whose MTU setting is smaller than that of the
transmitting device. Make the MTU setting identical. For example, when you conn
GR2000 with Cisco Systemsrouters, set the MTU of GR2000 to 1502, using the
-max_packet_size option of the dlci command. The MTU length used in IP fragment is
-max_packet_size -2 of a dlci command. For the IP fragment, see the "Application
Guide".