Купил 3526, настроил VLAN`ы как на 3026. Подключил к Cat2950 и вдруг обнаружил что через каталиста проходят все вланы кроме 1 (default). Подключаю 3026 - всё работает, подключаюсь напрямую к 3526 - работает. Как только к каталисту подключу, не могу залезть через него на 3536. Подключаю к транковому порту 3026, к нему подключаю 3526 и о чудо, вижу оба свича!!! То есть что то включено на 3526 что не дает каталисту пускать в 1 влан.

Срочна нужна помосчь

VID : 1 VLAN Name : default
VLAN TYPE : static Advertisement : Enabled
Member ports : 1-8
Static ports : 1-8
Current Tagged ports : 1-8
Current Untagged ports :
Static Tagged ports : 1-8
Static Untagged ports :
Forbidden ports :

Global GVRP : Disabled

Port PVID GVRP Ingress Checking Acceptable Frame Type
------ ---- -------- ---------------- ---------------------------
1 1 Disabled Enabled All Frames
2 1 Disabled Enabled All Frames
3 1 Disabled Enabled All Frames
4 1 Disabled Enabled All Frames
5 1 Disabled Enabled All Frames
6 1 Disabled Enabled All Frames
7 1 Disabled Enabled All Frames
8 1 Disabled Enabled All Frames
9 111 Disabled Enabled All Frames
10 111 Disabled Enabled All Frames
11 111 Disabled Enabled All Frames
12 111 Disabled Enabled All Frames
13 111 Disabled Enabled All Frames
14 111 Disabled Enabled All Frames
15 111 Disabled Enabled All Frames
16 111 Disabled Enabled All Frames
17 111 Disabled Enabled All Frames
18 111 Disabled Enabled All Frames
19 111 Disabled Enabled All Frames
20 111 Disabled Enabled All Frames
21 111 Disabled Enabled All Frames
22 111 Disabled Enabled All Frames
23 111 Disabled Enabled All Frames
24 111 Disabled Enabled All Frames
25 111 Disabled Enabled All Frames
26 111 Disabled Enabled All Frames

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/5, Fa0/6, Fa0/7, Fa0/8
Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16
Fa0/17, Fa0/18, Fa0/19, Fa0/21
Fa0/24

VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 0 0

Remote SPAN VLAN
----------------
Disabled

Primary Secondary Type Ports
------- --------- ----------------- ------------------------------------------

FastEthernet0/7 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0011.5c15.4ec7 (bia 0011.5c15.4ec7)
Description: ---Link to Campus 154---
MTU 1500 bytes, BW 100000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:00, output hang never
Last clearing of "show interface" counters never
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 66000 bits/sec, 80 packets/sec
5 minute output rate 89000 bits/sec, 122 packets/sec
1050325851 packets input, 621697964 bytes, 0 no buffer
Received 4756103 broadcasts (0 multicast)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 45 ignored
0 watchdog, 169299 multicast, 0 pause input
0 input packets with dribble condition detected
1312766504 packets output, 3534967303 bytes, 0 underruns
0 output errors, 0 collisions, 4 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out

У Вас этот порт на Cisco точно tagged в первом VLAN-е?

По умолчанию первый VLAN native а значит untagged. Укажите версию прошивки пожалуйста.

DES-3526

Catalyst

Name: Fa0/7
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Negotiation of Trunking: Off
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Voice VLAN: none
Administrative private-vlan host-association: none
Administrative private-vlan mapping: none
Administrative private-vlan trunk native VLAN: none
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none
Administrative private-vlan trunk private VLANs: none
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL
Protected: false