an interesting evening, all things considered. where's that woman from
Australia been lately?
Jen - your insight and experience would be most welcome here!!!! :->
Got an OSPF demand circuit to work as advertised:
R2#o data
OSPF Router with ID (10.7.7.7) (Process ID 2)
Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link count
10.7.7.7 10.7.7.7 27 0x80000022 0xEEC3 5
10.9.9.9 10.9.9.9 7 (DNA) 0x800000BE 0x940D 2
10.111.111.1 10.111.111.1 103 0x80000039 0xE4F3 5
Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
10.1.2.1 10.111.111.1 103 0x8000000B 0x2C03
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
10.4.1.1 10.9.9.9 318 (DNA) 0x80000003 0x14E6
10.4.2.1 10.9.9.9 318 (DNA) 0x80000003 0x9F0
10.8.8.0 10.9.9.9 318 (DNA) 0x80000003 0x3CBE
10.9.9.0 10.9.9.9 318 (DNA) 0x80000003 0x25D3
10.34.34.0 10.9.9.9 1878 0x80000030 0xE3AC
10.44.1.0 10.9.9.9 860 0x80000002 0x3E96
172.16.1.1 10.9.9.9 66 (DNA) 0x80000002 0x430A
R2#
HOWEVER: it only worked for a little while. Note the time stamps.
R2#sh di
01:26:47: %ISDN-6-DISCONNECT: Interface BRI0:1 disconnected from 2221 R3,
call lasted 120 secondsaler
01:26:47: %LINK-3-UPDOWN: Interface BRI0:1, changed state to down
01:26:48: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0:1, changed
state to down
01:26:48: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1,
changed state to down
Link goes down at 1:26 and change.
BRI0 - dialer type = ISDN
Dial String Successes Failures Last DNIS Last status
2221 38 1 00:02:04 successful
0 incoming call(s) have been screened.
0 incoming call(s) rejected for callback.
BRI0:1 - dialer type = ISDN
Idle timer (120 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is idle
BRI0:2 - dialer type = ISDN
Idle timer (120 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is idle
R2#
01:48:19: %OSPF-5-ADJCHG: Process 2, Nbr 10.9.9.9 on BRI0 from FULL to
DOWN,
Neighbor Down: Dead timer expired
R2#
NOTE - the time stamp indicates the adjacency dies at 1:48 and change -
roughly 22 minutes later.
This is the best result I've had so far, but still a bit short of
expectation. IMHO the demand situation SHOULD last FOREVER!!!!!!
Note that the OSPF database still shows the DNA's for the routes in
question.
R2#o data
OSPF Router with ID (10.7.7.7) (Process ID 2)
Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link count
10.7.7.7 10.7.7.7 713 0x80000025 0xE3F 3
10.9.9.9 10.9.9.9 7 (DNA) 0x800000BE 0x940D 2
10.111.111.1 10.111.111.1 763 0x8000003B 0xE0F5 5
Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
10.1.2.1 10.111.111.1 763 0x8000000D 0x2805
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
10.4.1.1 10.9.9.9 318 (DNA) 0x80000003 0x14E6
10.4.2.1 10.9.9.9 318 (DNA) 0x80000003 0x9F0
10.8.8.0 10.9.9.9 318 (DNA) 0x80000003 0x3CBE
10.9.9.0 10.9.9.9 318 (DNA) 0x80000003 0x25D3
172.16.1.1 10.9.9.9 66 (DNA) 0x80000002 0x430A
R2#
Anyone with real world experience got any thoughts? Recall that this is
done
with IOS 12.1.5T10 and an ISDN simulator, which has proven interesting, to
say the least.
TAC docs indicate that lots of things ISDN related have been "fixed" in
12.2
releases.
Good night, all.
Chuck
--
TANSTAAFL
"there ain't no such thing as a free lunch"
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