关于用软件VLAN处理IPTV的方法

spicahan

redtears 发表于 2011-8-19 16:23
首先谢谢您回复，看了这些配置我大致明白了工作原理，是讲WAN口过来的数据分成两路vlan85和vlan51, 然后 ...

我查了一下，你用的是 H618B 对吧，这个用的是 BCM5354, 里面只有一块网卡，WAN/LAN 是靠交换机来分隔的，这种机型要交换机芯片能支持128个VLAN才能处理上海的 IPTV. 网上找不到 bcm5354 支持多少VLAN的详细资料，不过估计是和5325E一样的，只支持16个VLAN... 这样吧，你在 OpenWrt 上运行一下

1. demsg | grep robo
   

复制代码

贴上来看看是什么结果，基本上就知道了。

再解释得详细一点。在 WAN/LAN 各有一块网卡的机器上，光猫可以直接连到WAN口上，这时候光猫传过来的数据没经过任何处理，都能到达 CPU 被 Linux 看到，然后可以靠软件来处理 VLAN, 实现各种功能；
而在你这种机器上，光猫过来的数据必须先经过内部的交换机芯片然后才能到达 CPU 被 Linux 看到。如果交换机的VLAN功能没打开，WAN/LAN/IPTV 就完全没法分开，肯定不能这样用；而如果打开 VLAN 功能，那就要求 vlan 51, vlan 85都支持，否则在交换机芯片那里会被丢弃，一样到不了 CPU 那里。这里有趣的事情来了：如果交换机芯片本身已经能处理所有的VLAN了，那你还要用软件来处理 VLAN 干什么呢。。。

redtears

spicahan 发表于 2011-8-19 22:08
我查了一下，你用的是 H618B 对吧，这个用的是 BCM5354, 里面只有一块网卡，WAN/LAN 是靠交换机来分隔的， ...

非常感谢你这么耐心指导我呵呵，我执行了一下dmesg | grep robo, 结果为空。 我看了下好像确实最多支持16个VLAN。这个机器原来原厂rom里我记得是把一个端口划成一个vlan桥接到wan上，vlanID好像是3551，这个不知道原厂rom内部是怎么操作的了， 下面那个图是我朋友帮我截下来的，我们是邻居，都是FTTB接入，不过他用的是RG100E，但是跟我的H618b一样应该是BCM5354芯片的。
厄。。。。好像没法传图片，那我就把图上那些配置打一下吧。

上行方式：LAN
连接名称：2_other_b_vid_3551
模式：bridge
启用VLAN：是
vlan id: 3551
802.1p: 0
服务模式：other
绑定端口：端口2

spicahan

redtears 发表于 2011-8-19 22:26
非常感谢你这么耐心指导我呵呵，我执行了一下dmesg | grep robo, 结果为空。 我看了下好像确实最多支持16 ...

结果为空太奇怪了。。你执行一下 dmesg, 把完整的输出都发上来看看吧。
另外，你在哪里看到它最多支持 16 个 vlan 的？虽然只支持16个VLAN也可以划 3551 这么高的 VID, 但我相信一般人不会这么干的。。。

redtears

spicahan 发表于 2011-8-19 22:34
结果为空太奇怪了。。你执行一下 dmesg, 把完整的输出都发上来看看吧。
另外，你在哪里看到它最多支持 1 ...

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mini_fo: using base directory: /
mini_fo: using storage directory: /overlay
b44: eth0: powering down PHY
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
device eth0.0 entered promiscuous mode
device eth0 entered promiscuous mode
br-lan: port 1(eth0.0) entering forwarding state
Compat-wireless backport release: compat-wireless-2011-06-23
Backport based on wireless-testing.git master-2011-06-22
cfg80211: Calling CRDA to update world regulatory domain
PPP generic driver version 2.4.2
NET: Registered protocol family 24
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
b43-phy0: Broadcom 5354 WLAN found (core revision 13)
ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
Registered led device: b43-phy0::tx
Registered led device: b43-phy0::rx
Registered led device: b43-phy0::radio
Broadcom 43xx driver loaded [ Features: PL, GPIO LED Mask: 0x000f, Firmware-ID: FW13 ]
cfg80211: World regulatory domain updated:
cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211:     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
cfg80211:     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Broadcom 43xx-legacy driver loaded [ Features: PLID, Firmware-ID: FW10 ]
ip_tables: (C) 2000-2006 Netfilter Core Team
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
nf_conntrack version 0.5.0 (1985 buckets, 7940 max)
CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Please use
nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack module option or
sysctl net.netfilter.nf_conntrack_acct=1 to enable it.
xt_time: kernel timezone is -0000
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci_hcd ssb0:1: SSB OHCI Controller
ohci_hcd ssb0:1: new USB bus registered, assigned bus number 1
ohci_hcd ssb0:1: irq 6, io mem 0x18003000
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
ohci_hcd ssb0:1: SSB EHCI Controller
ohci_hcd ssb0:1: new USB bus registered, assigned bus number 2
ohci_hcd ssb0:1: irq 6, io mem 0x18003800
ohci_hcd ssb0:1: USB 0.0 started, EHCI 1.00
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
uhci_hcd: USB Universal Host Controller Interface driver
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usb 2-1: new high speed USB device using ohci_hcd and address 2
usb 2-1: configuration #1 chosen from 1 choice
scsi0 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 2
usb-storage: waiting for device to settle before scanning
cfg80211: Calling CRDA for country: US
cfg80211: Regulatory domain changed to country: US
cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
cfg80211:     (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211:     (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211:     (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
b43-phy0: Loading firmware version 410.2160 (2007-05-26 15:32:10)
scsi 0:0:0:0: Direct-Access     Generic  External         1.08 PQ: 0 ANSI: 4
sd 0:0:0:0: [sda] 976773168 512-byte logical blocks: (500 GB/465 GiB)
usb-storage: device scan complete
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 23 00 00 00
sd 0:0:0:0: [sda] Assuming drive cache: write through
sd 0:0:0:0: [sda] Assuming drive cache: write through
sda: sda1
sd 0:0:0:0: [sda] Assuming drive cache: write through
sd 0:0:0:0: [sda] Attached SCSI disk
b43-phy0: Loading firmware version 410.2160 (2007-05-26 15:32:10)
device wlan0 entered promiscuous mode
br-lan: port 2(wlan0) entering forwarding state
device wlan0 left promiscuous mode
br-lan: port 2(wlan0) entering disabled state
device wlan0 entered promiscuous mode
br-lan: port 2(wlan0) entering forwarding state
kjournald starting.  Commit interval 5 seconds
EXT3-fs warning: maximal mount count reached, running e2fsck is recommended
EXT3 FS on sda1, internal journal
EXT3-fs: mounted filesystem with writeback data mode.
warning: `smbd' uses 32-bit capabilities (legacy support in use)


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16个VLAN我是在openwrt的vlan配置界面里尝试填一个超过16的vlan id，然后保存的时候系统提示的。 那个3551是原厂固件里的设置

spicahan

redtears 发表于 2011-8-19 22:57
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Empty flash at 0x00cf ...

这个里面也没找到有用的信息。。。能不能再发个 lsmod 的输出？

另外，vlan配置界面里说只有16个VLAN那是不作数的，因为OpenWrt那帮人在写驱动的时候就只允许16个Vlan, 哪怕硬件上实际上没有限制。我就改过OpenWrt的驱动，让它允许超过16个。

redtears

spicahan 发表于 2011-8-19 23:08
这个里面也没找到有用的信息。。。能不能再发个 lsmod 的输出？

另外，vlan配置界面里说只有16个VLAN那 ...

Module                  Size  Used by    Not tainted
usb_storage            35680  1
uhci_hcd               19104  0
ohci_hcd               17952  0
macvlan                 4704  0
nf_nat_tftp              432  0
nf_conntrack_tftp       2400  1 nf_nat_tftp
nf_nat_irc               864  0
nf_conntrack_irc        2592  1 nf_nat_irc
nf_nat_ftp              1360  0
nf_conntrack_ftp        4896  1 nf_nat_ftp
xt_HL                   1280  0
xt_hl                    928  0
xt_MARK                  496  0
ipt_ECN                 1376  0
xt_CLASSIFY              496  0
xt_time                 1632  0
xt_tcpmss               1008  0
xt_statistic             800  0
xt_mark                  512  0
xt_length                688  0
ipt_ecn                  992  0
xt_DSCP                 1536  0
xt_dscp                 1040  0
ipt_MASQUERADE           992  1
iptable_nat             2880  1
nf_nat                 12544  5 nf_nat_tftp,nf_nat_irc,nf_nat_ftp,ipt_MASQUERADE,iptable_nat
xt_CONNMARK              768  8
xt_recent               5872  0
xt_helper                816  0
xt_conntrack            2144  2
xt_connmark              640  0
xt_connbytes            1216  0
xt_NOTRACK               672  0
iptable_raw              656  1
xt_state                 800  9
nf_conntrack_ipv4       8352 22 iptable_nat,nf_nat
nf_defrag_ipv4           608  1 nf_conntrack_ipv4
nf_conntrack           44032 17 nf_nat_tftp,nf_conntrack_tftp,nf_nat_irc,nf_conntrack_irc,nf_nat_ftp,nf_conntrack_ftp,ipt_MASQUERADE,iptable_nat,nf_nat,xt_CONNMARK,xt_helper,xt_conntrack,xt_connmark,xt_connbytes,xt_NOTRACK,xt_state,nf_conntrack_ipv4
ehci_hcd               34272  1 ohci_hcd
sd_mod                 23088  2
ipt_REJECT              1984  2
xt_TCPMSS               2720  4
ipt_LOG                 4640  0
xt_comment               464  0
xt_multiport            1904  0
xt_mac                   576  0
xt_limit                1152  1
iptable_mangle           992  1
iptable_filter           768  1
ip_tables               8864  4 iptable_nat,iptable_raw,iptable_mangle,iptable_filter
xt_tcpudp               1856  7
x_tables                9824 32 xt_HL,xt_hl,xt_MARK,ipt_ECN,xt_CLASSIFY,xt_time,xt_tcpmss,xt_statistic,xt_mark,xt_length,ipt_ecn,xt_DSCP,xt_dscp,ipt_MASQUERADE,iptable_nat,xt_CONNMARK,xt_recent,xt_helper,xt_conntrack,xt_connmark,xt_connbytes,xt_NOTRACK,xt_state,ipt_REJECT,xt_TCPMSS,ipt_LOG,xt_comment,xt_multiport,xt_mac,xt_limit,ip_tables,xt_tcpudp
ext3                   95872  1
jbd                    44144  1 ext3
ppp_async               9040  0
b43legacy              97296  0
b43                   148064  0
mac80211              234512  2 b43legacy,b43
usbcore               107040  5 usb_storage,uhci_hcd,ohci_hcd,ehci_hcd
pppoe                  10208  6
scsi_mod               73008  2 usb_storage,sd_mod
pppox                   1312  1 pppoe
ppp_generic            21216 15 ppp_async,pppoe,pppox
nls_base                4960  1 usbcore
mbcache                 4160  0
crc_ccitt                976  1 ppp_async
slhc                    5360  1 ppp_generic
cfg80211              138080  3 b43legacy,b43,mac80211
compat_firmware_class     5360  2 b43legacy,b43
compat                  9984  4 b43legacy,b43,mac80211,cfg80211
arc4                     816  2
aes_generic            31056  3
deflate                 1328  0
ecb                     1328  0
cbc                     2016  0
switch_robo             4208  0
switch_core             5200  1 switch_robo

spicahan

redtears 发表于 2011-8-19 23:17
Module                  Size  Used by    Not tainted
usb_storage            35680  1
uhci_hcd   ...

我去网上查了一下，没有明确的关于5354到底支持多少个vlan的结论，我手头也没有机器，也没法自己去实验。。。
我的感觉是，大概有一半的概率，能支持超过16个。如果你愿意尝试的话，可以试试用我在硬件VLAN那个帖子里发的修改过的驱动，看看能不能支持。我自己是打算买一个华硕的RT-N16算了，一步到位吧，千兆交换机而且可以支持4096个vlan...

redtears

spicahan 发表于 2011-8-21 12:07
我去网上查了一下，没有明确的关于5354到底支持多少个vlan的结论，我手头也没有机器，也没法自己去实验。 ...

好的，回头我去试一下。再次感谢。RT-N16好像确实很强大。

spicahan

redtears 发表于 2011-8-21 21:12
好的，回头我去试一下。再次感谢。RT-N16好像确实很强大。

嗯，其实与其折腾弱的东西，不如一步到位买个好点的，虽然表面上省不了钱，但时间和精力可以省下来，也是好的。我已经下单RT-N16了，如果IPTV完美支持的话，我就发个报告帖给大家参考。

redtears

spicahan 发表于 2011-8-21 22:06
嗯，其实与其折腾弱的东西，不如一步到位买个好点的，虽然表面上省不了钱，但时间和精力可以省下来，也是 ...

好~期待你的报告贴了呵呵：） 如果iptv也能搞定我也去买一个