From: ccie2be (ccie2be@nyc.rr.com)
Date: Tue Aug 03 2004 - 23:33:38 GMT-3
Hey Tom,
I'm starting to get the feeling that the problem is some stupid little thing
I'll be very embarrassed by once this is figured out. But, so far, I can't
figure out what's causing this problem. Here's some output from R6:
Rack1R6#p 136.7.136.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 136.7.136.1, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), round-trip min/avg/max = 1/2/4 ms
Rack1R6#p 136.7.136.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 136.7.136.3, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), round-trip min/avg/max = 1/2/4 ms
Rack1R6#sh ip arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 136.7.136.6 - 0050.d15f.7420 ARPA BVI1
Internet 136.7.136.3 0 0002.fd3d.e081 ARPA BVI1
Internet 136.7.136.1 0 0002.b988.bde0 ARPA BVI1
Internet 204.12.7.6 - 0050.d15f.7420 ARPA
FastEthernet1/0/0.6
3
Rack1R6#sh bridge 1 ver
Total of 300 station blocks, 298 free
Codes: P - permanent, S - self
BG Hash Address Action Interface VC Age RX count TX
count
1 5D/0 0002.b988.bde0 forward Fa1/0/0.16 - 0 5
4
1 61/0 0002.fd3d.e081 forward Fa1/0/0.36 - 0 5
4
Flood ports (BG 1) RX count TX count
FastEthernet1/0/0.16 0 0
FastEthernet1/0/0.36 0 0
Rack1R6#sh span 1 sum
Root bridge for Bridge group 1 is this bridge.
PortFast BPDU Guard is disabled
Name Blocking Listening Learning Forwarding STP Active
-------------------- -------- --------- -------- ---------- ----------
Bridge group 1 0 0 0 2 2
Rack1R6#sh ip int fa1/0/0
FastEthernet1/0/0 is up, line protocol is up
Internet protocol processing disabled
Rack1R6#sh ip int fa1/0/0.16
FastEthernet1/0/0.16 is up, line protocol is up
Internet protocol processing disabled
Rack1R6#sh ip bvi1
^
% Invalid input detected at '^' marker.
Rack1R6#sh ip int bvi1
BVI1 is up, line protocol is up
Internet address is 136.7.136.6/24
Broadcast address is 255.255.255.255
Address determined by setup command
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Outgoing access list is not set
Inbound access list is not set
Proxy ARP is enabled
Local Proxy ARP is disabled
Security level is default
Split horizon is enabled
*************************************
As you can see, R6 can ping both R1 and R3.
Some things I noticed while comparing outputs. In your show ip arp, the
interface referenced was fa0/0 while my output referenced BVI 1. Do you
know why that is? Does it matter in this scenario?
Here's some config file snippets & output from some show commands from sw1:
Rack1SW1#sh int tru
Port Mode Encapsulation Status Native vlan
Fa0/6 on 802.1q trunking 1
Fa0/13 on 802.1q trunking 36
Fa0/14 on 802.1q trunking 36
Fa0/15 on 802.1q trunking 36
Port Vlans allowed on trunk
Fa0/6 16,36,63,1002-1005
Fa0/13 1-4094
Fa0/14 1-4094
Fa0/15 1-4094
----------------------------------------
interface FastEthernet0/6 <------------- Connected to R6
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 16,36,63,1002-1005
switchport mode trunk
no ip address
duplex half
speed 100
--------------------------
interface FastEthernet0/1 <------------- Connected to R1
switchport access vlan 16
switchport mode dynamic desirable
no ip address
-----------------------------------
There's a trunk between sw1 and sw2 and sw2 is physically connected to R3:
interface FastEthernet0/3
switchport access vlan 36
switchport mode dynamic desirable
no ip address
This archive was generated by hypermail 2.1.4 : Fri Sep 03 2004 - 07:02:32 GMT-3