Difference between revisions of "CCNP TSHOOT Learning Guide/Chapter 4"
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m (New page: {{Template:In progress}} =Basic Cisco Catalyst Switch Troubleshooting= __TOC__ =VLAN Troubleshooting= ==ARP== *show mac-addresses <source lang=cli> SW1#<input>show mac-address-table</input...) |
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__TOC__ | __TOC__ | ||
=VLAN Troubleshooting= | =VLAN Troubleshooting= | ||
| − | ==ARP== | + | ==Layer 2 reviewing== |
| + | ===ARP=== | ||
*show mac-addresses | *show mac-addresses | ||
<source lang=cli> | <source lang=cli> | ||
| Line 31: | Line 32: | ||
28 0013.2085.a1fe DYNAMIC Gi0/9 | 28 0013.2085.a1fe DYNAMIC Gi0/9 | ||
28 0013.2085.c447 DYNAMIC Gi0/9 | 28 0013.2085.c447 DYNAMIC Gi0/9 | ||
| + | <notice>...OUTPUT OMITTED...</notice> | ||
</source> | </source> | ||
| − | + | ===Troubleshooting layer 2=== | |
| + | *Hardware issues (move cable to good port) | ||
| + | *VLAN configuration. | ||
| + | **Inter-VLAN traffic must be routed | ||
| + | *Trunk configuration | ||
| + | **Same trunkprotocol (DOT1Q,ISL) | ||
| + | **Same Native VLAN | ||
| + | ==Layer 2 Troulshooting techniques== | ||
{{Source cli}} | {{Source cli}} | ||
Revision as of 06:27, 15 June 2010
This article is under development....
Basic Cisco Catalyst Switch Troubleshooting
Contents
VLAN Troubleshooting
Layer 2 reviewing
ARP
- show mac-addresses
SW1#<input>show mac-address-table</input>
Mac Address Table
-------------------------------------------
Vlan Mac Address Type Ports
---- ----------- -------- -----
All 0100.0ccc.cccc STATIC CPU
All 0100.0ccc.cccd STATIC CPU
<notice>...OUTPUT OMITTED...</notice>
1 001b.0cba.4f99 DYNAMIC Gi0/9
1 001b.2a32.2e99 DYNAMIC Gi0/5
1 0021.5a7c.5549 DYNAMIC Gi0/4
1 00a0.d1e6.60b4 DYNAMIC Gi0/22
41 0014.f273.96c0 DYNAMIC Gi0/7
<notice>...OUTPUT OMITTED...</notice>
41 001b.0cb6.9141 DYNAMIC Gi0/7
41 001b.0cba.4fc1 DYNAMIC Gi0/9
41 001b.2a32.2ec1 DYNAMIC Gi0/5
12 001f.297d.3460 DYNAMIC Gi0/2
20 00a0.c543.035d DYNAMIC Gi0/6
22 0003.47ca.d67c DYNAMIC Gi0/7
22 000c.296c.1120 DYNAMIC Gi0/12
24 0016.769f.ff4e DYNAMIC Gi0/8
28 0013.2085.a1fe DYNAMIC Gi0/9
28 0013.2085.c447 DYNAMIC Gi0/9
<notice>...OUTPUT OMITTED...</notice>Troubleshooting layer 2
- Hardware issues (move cable to good port)
- VLAN configuration.
- Inter-VLAN traffic must be routed
- Trunk configuration
- Same trunkprotocol (DOT1Q,ISL)
- Same Native VLAN