HP MSR Router Series Configuration Manual page 5

Interface physical status is up, link protocol status is down, and loopback is detected ································ 55
Configuring ATM interfaces ······································································································································ 57
Overview ········································································································································································· 57
ATM and DSL ························································································································································· 57
ATM interface types ·············································································································································· 57
ATM interface features ·········································································································································· 57
Configuring an ATM OC-3c/STM-1 interface ············································································································ 58
Configuring an ADSL interface ····································································································································· 59
Overview ································································································································································ 59
Configuration procedure ······································································································································ 60
Configuring a G.SHDSL interface ································································································································ 61
Overview ································································································································································ 61
Configuration procedure ······································································································································ 61
Configuring an ATM subinterface ································································································································ 63
Configuring an EFM interface ······································································································································ 63
Configuring an EFM subinterface ································································································································· 65
Displaying and maintaining ATM interfaces ··············································································································· 65
Troubleshooting ATM interfaces ··································································································································· 66
Interface state error ··············································································································································· 66
Frequent packet dropping, CRC check errors, and interface state errors ······················································· 66
Troubleshooting DSL interfaces ···························································································································· 66
Configuring loopback, null, and inloopback interfaces ·························································································· 68
Configuring a loopback interface ································································································································ 68
Configuring a null interface ·········································································································································· 69
Configuring an inloopback interface ··························································································································· 69
Displaying and maintaining loopback, null, and inloopback interfaces ································································· 69
Support and other resources ····································································································································· 70
Contacting HP ································································································································································ 70
Subscription service ·············································································································································· 70
Related information ························································································································································ 70
Documents ······························································································································································ 70
Websites ································································································································································· 70
Conventions ···································································································································································· 71
Index ··········································································································································································· 73
iii