Brocade Communications Systems BR-1020 Guía para resolver problemas Pagina 42
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24 Brsocade Adapters Troubleshooting Guide
53-1001253-01
Ethernet network interface problems (CNA only)
2
Action: Check for other instances of this diagnostic using ps -ef for Linux and VMware, and Task
Manager for Windows systems.
Action: Wait a few minutes before retrying the command (Check if the other instance is done
using ps -ef command or Task Manager).
5. Symptom: The loopback test returns “Missing frame check and replace SFP/cable.”
Possible Cause: The loopback cable was pulled during the test.
NOTE
This should only occur when the test is run in ext mode and not in serdes mode.
Action: Restart the test with the cable connected.
Network stack runs out of heap
The network stack on VMware systems is running out of heap space.
Possible Cause: Enabling NetQueue and using jumbo frames has caused the network stack to run
out of heap with default values set for netPktHeapMaxSize and netPktHeapMinSize. Leaving
default values can result in unpredictable behavior.
Action: Perform the following steps.
1. Log in to the VI Client.
2. Click the Configuration tab for the ESX Server host.
3. Click Advanced Settings.
4. Click VMkernel.
5. Find the corresponding value field for VMkernel.Boot.netPktHeapMaxSize, and enter 128 .
6. Find the corresponding value field for VMkernel.Boot.netPktHeapMinSize, and enter 32 .
7. Clic k OK to save the changes.
8. Reboot the system.
NIC numbering unexpected on VMware systems
After installing CNA drivers on VMware systems, NIC numbering is not what is normally expected.
For example, instead of vmnic32 or vmnic33, number is vmnic2 and vmnic3.
Possible Cause: CNA hardware was installed before drivers.
Action: When installing a CNAs on a VMware systems, it is advisable to install the driver before the
CNA cards so that the NICs will be properly enumerate in the system. To resolve the problem, you
must perform the following steps:
1. Uninstall the drivers.
2. Remove the CNA card.
3. Reboot your system without the CNA.
4. Install the drivers.
5. Install the card.
- Brocade Adapters 1
- Document History 2
- Contents 3
- About this Document 9
- CNA support 10
- Fabric OS and switch support 10
- Host operating system support 10
- HBA support 11
- What’s new in this document 12
- Document conventions 13
- Notes, cautions, and warnings 14
- Key terms 14
- Notice to the reader 15
- Additional information 15
- Providing details for support 16
- Command Function 17
- Document feedback 18
- In this chapter 19
- Gathering problem information 20
- TABLE 1 Topology map details 21
- Isolating Problems 23
- How to use this chapter 24
- Isolate adapter problems 24
- General HBA and CNA problems 26
- Port link is not active 27
- • The agent is not running 30
- BCU version mismatch warning 33
- HBA problems 34
- UEFI boot problems 35
- • Reseat the adapter 36
- BIOS boot problems 37
- LUN not visible from host 38
- Configuration menu 38
- • nm-tool 40
- Poor network performance 45
- FCoE link is down 48
- CEE is not enabled 50
- Application Tool References 51
- Information Chapter 52
- Tools for Collecting Data 57
- Data to provide support 58
- Support Save 60
- Support Save differences 62
- • authUtil 63
- • cfgShow 63
- Adapter event messages 65
- Host system logs 66
- HCM logs 67
- Logging levels adjustment 68
- Port logging level 69
- Statistics 70
- CEE statistics (CNA only) 71
- CEE query (CNA only) 71
- FCoE statistics (CNA only) 74
- Fabric statistics 74
- IOC statistics 75
- Logical port statistics 76
- Port statistics 77
- Remote port statistics 77
- VLAN Statistics (CNA only) 79
- Diagnostics 80
- • Internal 81
- • External 81
- PCI loopback test 83
- Memory test 84
- Adapter temperature 84
- Ping end points 84
- Trace route 85
- Echo test 86
- SCSI test 86
- Collecting SFP data 87
- Collecting port data 88
- Authentication settings 91
- Persistent binding 93
- Performance optimization 95
- Solaris tuning 96
- Windows tuning 96
- Tuning network drivers 97
- Linux tuning 98
- VMware tuning 99
- 53-1001253-01 100
- Event Message Reference 101
- TABLE 9 Driver event messages 102
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