iv
Configuring frame relay subinterface on the DCE side ············································································ 96
Configuring frame relay switching ············································································································ 96
Configuring frame relay over IP ··············································································································· 97
Configuring Annex G ································································································································ 98
Marking the DE bit ···································································································································· 98
Configuring frame relay fragmentation ····································································································· 99
Enabling the trap function ································································································································ 99
Displaying and maintaining frame relay ··········································································································· 99
Frame relay configuration examples ·············································································································· 100
Connecting LANs through a frame relay network (IPv4) ········································································ 100
Connecting LANs through a frame relay network (IPv6) ········································································ 102
Connecting LANs with a dedicated line ·································································································· 103
Connecting LANs through an Annex G DLCI ························································································· 104
Troubleshooting frame relay ·························································································································· 105
Configuring frame relay compression ························································· 107
Overview ························································································································································ 107
FRF.9 ····················································································································································· 107
FRF.20 ··················································································································································· 107
Configuring FRF.9 compression ···················································································································· 107
Configuration restrictions and guidelines ······························································································· 107
Configuration procedure ························································································································· 108
Configuring FRF.20 IP header compression ·································································································· 108
Displaying and maintaining frame relay compression ···················································································· 109
Frame relay compression configuration examples ························································································ 109
Frame relay FRF.9 stac compression configuration example ································································ 109
Frame relay FRF.20 IP header compression configuration example ····················································· 110
Configuring multilink frame relay ································································· 113
Overview ························································································································································ 113
Configuring an MFR bundle ··························································································································· 113
Configuring an MFR bundle link ····················································································································· 114
Displaying and maintaining multilink frame relay ··························································································· 114
Multilink frame relay configuration examples ································································································· 115
MFR direct connection configuration example ······················································································· 115
MFR switched connection configuration example ·················································································· 116
Configuring PPPoFR ··················································································· 118
Configuration procedure ································································································································ 118
Displaying and maintaining PPPoFR ············································································································· 118
PPPoFR configuration example ····················································································································· 119
Network requirements ···························································································································· 119
Configuration procedure ························································································································· 119
Configuring MPoFR ···················································································· 120
Configuration procedure ································································································································ 120
MPoFR configuration example ······················································································································· 121
Network requirements ···························································································································· 121
Configuration procedure ························································································································· 121
Configuring DCC ························································································· 123
Overview ························································································································································ 123
Approaches to DCC ······························································································································· 123
DCC features ········································································································································· 125
Configuration prerequisites ···················································································································· 126
DCC configuration task list ····························································································································· 126
Configuring basic settings for DCC ················································································································ 127
Setting the operating mode for physical interfaces ················································································ 127
Configuring link layer/network/routing protocols on the dialup interface ················································ 127
Associating a DCC dial ACL with the dialup interface ············································································ 128
Configuring C-DCC ········································································································································ 128
Configuring an interface to place calls to a remote end ········································································· 129
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