Networking
Realtek RTL8111/8168/8411網卡隨機斷線
系統資訊：
- 核心：最新的OPENVZ核心（2.6.32-042stab140.4）
- centos 版本：CentOS release 6.10 (Final)
- 網卡類型：乙太網控制器：Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
問題： 我們的伺服器有一個奇怪的問題。網路不時斷開，隨機斷開。有時它會持續幾天然後網路斷開，有時它會每天斷開，碰巧它也持續了 2 週，所以它完全不可靠。messages.log 或 dmesg.log 或任何其他日誌中沒有錯誤。我們唯一看到的是伺服器與網路斷開連接。使用 KVM，我可以使用命令“ifdown eth0 && ifup eth0”登錄並重新啟動網卡。之後，網路恢復線上。
我們嘗試了什麼：
- 安裝和更新核心
- 目前核心使用 r8169 驅動，我們知道有些人通過安裝 r8168 驅動解決了他們的網路問題。我們這樣做了，問題仍然存在。
網路配置：
/etc/sysconfig/network-scripts/ifcfg-eth0：
DEVICE=eth0 ONBOOT=yes HWADDR=D4:3D:7E:**** BOOTPROTO=static IPADDR=144.76.**** NETMASK=255.255.255.255 SCOPE="peer 144.76.****" IPV6INIT=yes IPV6ADDR=2a01:4f8:200:**** IPV6_DEFAULTGW=fe80::1 IPV6_DEFAULTDEV=eth0/etc/sysconfig/network-scripts/route-eth0：
ADDRESS0=0.0.0.0 NETMASK0=0.0.0.0 GATEWAY0=144.76.219.1/etc/resolv.conf 和 /etc/sysconfig/network 也設置正確
您可能需要幫助我的命令及其輸出：
ethtool eth0
Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supported pause frame use: No Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Advertised pause frame use: Symmetric Receive-only Advertised auto-negotiation: Yes Link partner advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Link partner advertised pause frame use: Symmetric Link partner advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: MII PHYAD: 0 Transceiver: internal Auto-negotiation: on Supports Wake-on: pumbg Wake-on: g Current message level: 0x00000033 (51) drv probe ifdown ifup Link detected: yesifconfig -a
eth0 Link encap:Ethernet HWaddr D4:3D:7E:EC:F1:64 inet addr:144.76.** Bcast:144.76.** Mask:255.255.255.255 inet6 addr: 2a01:4f8:** Scope:Global inet6 addr: fe80::d63d:** Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:216416 errors:0 dropped:0 overruns:0 frame:0 TX packets:236235 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:25416051 (24.2 MiB) TX bytes:112658399 (107.4 MiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:41671 errors:0 dropped:0 overruns:0 frame:0 TX packets:41671 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:7606777 (7.2 MiB) TX bytes:7606777 (7.2 MiB) venet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet6 addr: fe80::1/128 Scope:Link UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1 RX packets:217176 errors:0 dropped:0 overruns:0 frame:0 TX packets:194950 errors:0 dropped:1 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:105725409 (100.8 MiB) TX bytes:20479815 (19.5 MiB)ipa
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether d4:3d:7e:ec:f1:64 brd ff:ff:ff:ff:ff:ff inet 144.76.** peer 144.76.**/32 brd 144.76.** scope global eth0 inet6 2a01:4f8:** scope global valid_lft forever preferred_lft forever inet6 fe80::d63d:7eff:** scope link valid_lft forever preferred_lft forever 3: venet0: <BROADCAST,POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/void inet6 fe80::1/128 scope link valid_lft forever preferred_lft foreverlsmod
Module Size Used by vzethdev 8245 0 pio_kaio 14060 0 pio_nfs 19043 0 pio_direct 30148 2 pfmt_raw 3333 0 pfmt_ploop1 6703 2 ploop 120433 11 pio_kaio,pio_nfs,pio_direct,pfmt_raw,pfmt_ploop1 simfs 5189 0 vzrst 206937 0 nf_nat 23122 1 vzrst nf_conntrack_ipv4 9650 2 nf_nat nf_defrag_ipv4 1523 1 nf_conntrack_ipv4 vzcpt 156425 1 vzrst nfs 449026 3 pio_nfs,vzrst,vzcpt lockd 78281 2 vzrst,nfs fscache 61345 1 nfs auth_rpcgss 46116 1 nfs nfs_acl 2655 1 nfs sunrpc 274118 6 pio_nfs,nfs,lockd,auth_rpcgss,nfs_acl nf_conntrack 81593 4 vzrst,nf_nat,nf_conntrack_ipv4,vzcpt vziolimit 3775 0 vzdquota 55467 0 [permanent] ip6t_REJECT 4447 0 ip6table_mangle 3629 0 ip6table_filter 3025 0 ip6_tables 19020 2 ip6table_mangle,ip6table_filter xt_length 1330 0 xt_hl 1539 0 xt_tcpmss 1615 0 xt_TCPMSS 3549 0 iptable_mangle 3453 0 iptable_filter 2897 2 xt_multiport 2772 2 xt_limit 2126 0 xt_dscp 2065 0 ipt_REJECT 2423 19 ip_tables 18183 2 iptable_mangle,iptable_filter vzevent 2171 1 vznetdev 18984 4 vzmon 25679 5 vzrst,vzcpt,vznetdev vzdev 2725 5 vzethdev,vziolimit,vzdquota,vznetdev,vzmon ipv6 342460 90 vzrst,vzcpt,ip6t_REJECT,ip6table_mangle ext3 240851 1 jbd 80628 1 ext3 freq_table 4944 0 mperf 1565 0 intel_pstate 14660 0 ppdev 8321 0 parport_pc 22658 0 parport 37265 2 ppdev,parport_pc iTCO_wdt 7342 0 iTCO_vendor_support 3064 1 iTCO_wdt r8169 76421 0 mii 5544 1 r8169 i2c_i801 13273 0 i2c_core 29164 1 i2c_i801 sg 29542 0 lpc_ich 13579 0 mfd_core 1935 1 lpc_ich shpchp 29554 0 ext4 431830 3 jbd2 93732 1 ext4 mbcache 8201 2 ext3,ext4 raid1 33193 3 sd_mod 37126 8 crc_t10dif 1217 1 sd_mod ahci 43194 6 xhci_hcd 181527 0 video 21990 0 output 2417 1 video wmi 6287 0 dm_mirror 14904 0 dm_region_hash 12189 1 dm_mirror dm_log 9938 2 dm_mirror,dm_region_hash dm_mod 102855 2 dm_mirror,dm_loglspci -v
00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06) Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7816 Flags: bus master, fast devsel, latency 0 Capabilities: [e0] Vendor Specific Information: Len=0c <?> Kernel driver in use: hsw_uncore 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06) (prog-if 00 [VGA controller]) Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7816 Flags: bus master, fast devsel, latency 0, IRQ 11 Memory at f7800000 (64-bit, non-prefetchable) [size=4M] Memory at e0000000 (64-bit, prefetchable) [size=256M] I/O ports at f000 [size=64] Expansion ROM at <unassigned> [disabled] Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 2 Capabilities: [a4] PCI Advanced Features Kernel modules: i915 00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05) (prog-if 30 [XHCI]) Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7816 Flags: bus master, medium devsel, latency 0, IRQ 31 Memory at f7c00000 (64-bit, non-prefetchable) [size=64K] Capabilities: [70] Power Management version 2 Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+ Kernel driver in use: xhci_hcd Kernel modules: xhci-hcd 00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04) Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7816 Flags: bus master, fast devsel, latency 0, IRQ 11 Memory at f7c16000 (64-bit, non-prefetchable) [size=16] Capabilities: [50] Power Management version 3 Capabilities: [8c] MSI: Enable- Count=1/1 Maskable- 64bit+ 00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05) (prog-if 20 [EHCI]) Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7816 Flags: bus master, medium devsel, latency 0, IRQ 16 Memory at f7c14000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: ehci_hcd 00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: 00002000-00002fff Memory behind bridge: df200000-df3fffff Prefetchable memory behind bridge: 00000000df400000-00000000df5fffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7816 Capabilities: [a0] Power Management version 3 Kernel modules: shpchp 00:1c.1 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #2 (rev d5) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I/O behind bridge: 0000e000-0000efff Prefetchable memory behind bridge: 00000000f0000000-00000000f00fffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7816 Capabilities: [a0] Power Management version 3 Kernel modules: shpchp 00:1c.3 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d5) (prog-if 01 [Subtractive decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=03, subordinate=04, sec-latency=0 Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7816 Capabilities: [a0] Power Management version 3 00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05) (prog-if 20 [EHCI]) Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7816 Flags: bus master, medium devsel, latency 0, IRQ 23 Memory at f7c13000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: ehci_hcd 00:1f.0 ISA bridge: Intel Corporation H87 Express LPC Controller (rev 05) Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7816 Flags: bus master, medium devsel, latency 0 Capabilities: [e0] Vendor Specific Information: Len=0c <?> Kernel driver in use: lpc_ich Kernel modules: lpc_ich 00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05) (prog-if 01 [AHCI 1.0]) Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7816 Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 32 I/O ports at f0b0 [size=8] I/O ports at f0a0 [size=4] I/O ports at f090 [size=8] I/O ports at f080 [size=4] I/O ports at f060 [size=32] Memory at f7c12000 (32-bit, non-prefetchable) [size=2K] Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [70] Power Management version 3 Capabilities: [a8] SATA HBA v1.0 Kernel driver in use: ahci Kernel modules: ahci 00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05) Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7816 Flags: medium devsel, IRQ 18 Memory at f7c11000 (64-bit, non-prefetchable) [size=256] I/O ports at f040 [size=32] Kernel modules: i2c-i801 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06) Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7816 Flags: bus master, fast devsel, latency 0, IRQ 33 I/O ports at e000 [size=256] Memory at f0004000 (64-bit, prefetchable) [size=4K] Memory at f0000000 (64-bit, prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Endpoint, MSI 01 Capabilities: [b0] MSI-X: Enable- Count=4 Masked- Capabilities: [d0] Vital Product Data Capabilities: [100] Advanced Error Reporting Capabilities: [140] Virtual Channel Capabilities: [160] Device Serial Number 01-00-00-00-68-4c-e0-00 Kernel driver in use: r8169 Kernel modules: r8169 03:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 03) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=03, secondary=04, subordinate=04, sec-latency=32 Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [78] Power Management version 3 Capabilities: [80] Express PCI/PCI-X Bridge, MSI 00 Capabilities: [c0] Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7816 Capabilities: [100] Virtual Channel Kernel modules: shpchp即使網路關閉時“cat /sys/class/net/eth0/carrier”回顯“1”並且 cat /sys/class/net/eth0/operstate 回顯“up”，因此網卡已連接….
那麼怎麼了？我在許多論壇上讀到這張卡可能有問題和錯誤。你有什麼建議？我是對的，這個問題絕對是硬體問題/或驅動程序錯誤/問題。我認為解決方案是獲取新的附加網卡並禁用此板載卡。您怎麼看，在此先感謝您的幫助！
“我認為解決方案是獲取新的附加網卡並禁用此板載卡。”絕對是正確的答案。Realtec 卡（我很客氣）不是伺服器級技術 - 如果驅動程序錯誤還不夠，請考慮與體面的硬體相比，它們給 CPU 帶來的額外負擔。
除了 Windows 桌面之外，我總是會用英特爾晶片組卡（但還有很多其他知名的晶片組）替換這些卡。
- 嘗試使用
irqbalance，幫助我減輕了類似的問題- 如果可能的話，你能檢查一下你的交換機日誌嗎？有可能
Port Speed Negotiation未設置為auto，如果是，請嘗試手動將其設置為1Gbps- 愚蠢，但你永遠不知道，檢查/更換跳線。它可能看起來和感覺都很好，但是可以有一個彎曲的針可以做這種事情。資料來源： 過去的經驗