04-02-2003 01:01 AM - edited 03-02-2019 06:19 AM
I have GigaStack'ed a 3550 and a 3548 together. All appears OK but when I do a sho int gi0/1 on the 3550 and a sho int gi0/2 on the 3548 the output is a bit confusing as the duplex looks different
Is this OK or is it just me
I hope this makes some sense
3550:
GigabitEthernet0/1 is up, line protocol is up
Hardware is Gigabit Ethernet, address is 000b.5fd5.3d19 (bia 000b.5fd5.3d19)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex mode, link type is force-up, unknown 26
output flow-control is unsupported, input flow-control is unsupported, 1000Mb/s
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
GigaStack module(0.2) in GBIC slot. link1 is up, link2 is redundant link
3548:
GigabitEthernet0/2 is up, line protocol is up
Hardware is Gigabit Ethernet, address is 0007.507d.3072 (bia 0007.507d.3072)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Auto-duplex (Half), 1000Mb/s, media type is CX_GIGASTACK
output flow-control is off, input flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
GigaStack module(0.2) in GBIC slot. link1 is up, link2 is up
04-02-2003 04:51 AM
Hi,
how many cables are connected to your 3548 Gigastack GBIC? Is there any other switch involved in the stack?
It seems like daisy chain connection...
If there is only one port on a Gigastack Gbic connected there should be full-duplex.
When 2 ports are connected (daisy chaint to 2 other switches) then full-duplex should be set.
Regards,
Milan
04-02-2003 04:58 AM
I only have 2 switches in the config.
3550 on top and 3548 on the bottom. The GigaStack cable is connected to gi0/1 on the 3550 and goes to gi0/2 on the 3548.
I have loads if 3548 at HQ which I have GigaStacked without any problems
thanks
04-02-2003 05:09 AM
If there is the only ONE PHYSICAL CABLE between two switches there should not be
GigaStack module(0.2) in GBIC slot. link1 is up, link2 is up.
Either link1 or link2 should be down.
Regards,
Milan
05-16-2003 01:46 AM
I have almost the same situation:
3550
Full-duplex mode, link type is force-up, unknown 26
output flow-control is unsupported, input flow-control is unsupported, 1000Mb/
s
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
GigaStack module(0.2) in GBIC slot. link1 is down, link2 is up
3548
Auto-duplex (Half), 1000Mb/s, media type is CX_GIGASTACK
output flow-control is off, input flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
GigaStack module(0.2) in GBIC slot. link1 is up, link2 is up
Last input 00:00:00, output 00:00:57, output hang never
The activity indicator on Gi0/2 of 3550 is flashing 5-10 times/second.
Another strange thing I can see - I can not change neither speed nor duplex settings on both Gi ports on 3550.
All configuration was done automatically. Gigastack has 3 switches 1 X 3550 and 2 X 3548.
IOS versions are:
IOS (tm) C3550 Software (C3550-I5Q3L2-M), Version 12.1(11)EA1, RELEASE SOFTWARE
(fc1)
and
IOS (tm) C3500XL Software (C3500XL-C3H2S-M), Version 12.0(5.3)WC(1), MAINTENANCE INTERIM SOFTWARE
Any ideas about so strange behaviour?
Thank you in advance,
//Misha
06-17-2003 02:07 AM
Upgrade the 3550 to the latest IOS. The problem is that the 3550 is not seeing the GigaStack card properly
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