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Virtual-access2 interface up down

Dear All,

I have ADSL connection PPPOE but virtual-access2 interface up down.

BURGAN-TEC#show interfaces virtual-access 1

Virtual-Access1 is up, line protocol is up

Hardware is Virtual Access interface

MTU 1500 bytes, BW 100000 Kbit, DLY 100000 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation PPP, LCP Closed

Base PPPoATM vaccess

Vaccess status 0x40, loopback not set

0 output buffer failures, 0 output buffers swapped out

0 carrier transitions

BURGAN-TEC#show interfaces virtual-access 1 2

Virtual-Access2 is up, line protocol is down

Hardware is Virtual Access interface

MTU 1492 bytes, BW 192 Kbit, DLY 20000 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation PPP, LCP Listen

PPPoATM vaccess, cloned from Dialer0

Vaccess status 0x44

Bound to ATM0/2/0 VCD: 1, VPI: 0, VCI: 33, loopback not set

Keepalive set (10 sec)

DTR is pulsed for 5 seconds on reset

Interface is bound to Di0 (Encapsulation PPP)

Last input never, output never, output hang never

Last clearing of "show interface" counters 00:07:56

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: fifo

Output queue: 0/40 (size/max)

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

0 packets input, 0 bytes, 0 no buffer

Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

95 packets output, 1520 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

--More-- 0 output buffer failures, 0 output buffers swapped out

0 carrier transitions


Router#show ip interface brief

Interface IP-Address OK? Method Status Protocol

FastEthernet0/0 YES NVRAM up down

FastEthernet0/1 unassigned YES NVRAM administratively down down

ATM0/2/0 unassigned YES NVRAM up up

Virtual-Access1 unassigned YES unset up up

Virtual-Access2 unassigned YES unset up down

Dialer0 YES NVRAM up up




ip subnet-zero



ip cef

no ip dhcp use vrf connected



no ip ips deny-action ips-interface










interface FastEthernet0/0

ip address

ip accounting output-packets

ip tcp adjust-mss 1452

duplex auto

speed auto


interface FastEthernet0/1

no ip address


duplex auto

speed auto


interface ATM0/2/0

no ip address

no atm ilmi-keepalive

dsl operating-mode auto

pvc 0/33

encapsulation aal5snap

protocol ppp dialer

dialer pool-member 1



interface Dialer0

description Burgan-TEC

mtu 1492

ip address

encapsulation ppp

ip ospf hello-interval 5

dialer pool 1

dialer idle-timeout 0

dialer-group 1


router ospf 10


network area 0

network area 0

distance 80


ip classless

ip route


no ip http server

no ip http secure-server


dialer-list 1 protocol ip permit


Re: Virtual-access2 interface up down


Virtual access interface is widely being used in most of the scenarios where you have ppp multilink,l2forwarding,PPP over ATM.

Virtual Access interfaces, however, are created dynamically on demand & they are freed when they are no longer needed.

This is how Virtual Access interface is being used in PPP Over ATM ..

This feature provides support for the termination of multiple PPP connections on a router ATM interface when the data is formatted according to Cisco's (StrataCom) Frame Forwarding encapsulation. The PPP protocol is terminated on the router as if it were received from a typical PPP serial interface. Each PPP connection will be encapsulated in a separate ATM VC. VCs using other types of encapsulation may also be configured on the same interface.

I feel though your VA interface 2 is down i feel your VA interface 1 will be able to serve the requirement for which its being created dynamically.