Link Aggregate between Cisco & Ubuntu

[cisco]

conf t
int range g1/0/1 -2
channel-group 1 mode active
no sh
int po1
ip add 192.168.1.1 255.255.255.0
no sh

[Ubuntu]

sudo vi /etc/modprobe.d/bonding.conf
alias bond0 bonding
options bonding mode=4 miimon=100
sudo vi /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
#auto eth0
#iface eth0 inet dhcp
auto bond0
iface bond0 inet static
address 192.168.1.10
gateway 192.168.1.1
netmask 255.255.255.0
slaves eth0 eth1
bond-mode 4
bond-miimon 100

sudo vi /etc/modprobe.d/bonding.conf
alias bond0 bonding

options bonding mode=4

miimon=100

sudo vi /etc/network/interfaces

# This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5).

# The loopback network interface

auto lo

iface lo inet loopback
# The primary network interface

#auto eth0

#iface eth0 inet dhcp
auto bond0

iface bond0 inet static

address 192.168.1.10

gateway 192.168.1.1

netmask 255.255.255.0

slaves eth0 eth1

bond-mode 4

bond-miimon 100

#######################

Linux Bonding mode

mode=0 (balance-rr)  Round-robin policy: Transmit packets in sequential order from the first available slave through the last. This mode provides load balancing and fault tolerance.

mode=1 (active-backup)  Active-backup policy: Only one slave in the bond is active. A different slave becomes active if, and only if, the active slave fails. The bond’s MAC address is externally visible on only one port (network adapter) to avoid confusing the switch. This mode provides fault tolerance. The primary option affects the behavior of this mode.

mode=2 (balance-xor)  XOR policy: Transmit based on [(source MAC address XOR’d with destination MAC address) modulo slave count]. This selects the same slave for each destination MAC address. This mode provides load balancing and fault tolerance.

mode=3 (broadcast)  Broadcast policy: transmits everything on all slave interfaces. This mode provides fault tolerance.

mode=4 (802.3ad)  IEEE 802.3ad Dynamic link aggregation. Creates aggregation groups that share the same speed and duplex settings. Utilizes all slaves in the active aggregator according to the 802.3ad specification.

  • Pre-requisites:
  • Ethtool support in the base drivers for retrieving the speed and duplex of each slave.
  • A switch that supports IEEE 802.3ad Dynamic link aggregation. Most switches will require some type of configuration to enable 802.3ad mode.

mode=5 (balance-tlb) Adaptive transmit load balancing: channel bonding that does not require any special switch support. The outgoing traffic is distributed according to the current load (computed relative to the speed) on each slave. Incoming traffic is received by the current slave. If the receiving slave fails, another slave takes over the MAC address of the failed receiving slave.

  • Prerequisite: Ethtool support in the base drivers for retrieving the speed of each slave.

mode=6 (balance-alb) Adaptive load balancing: includes balance-tlb plus receive load balancing (rlb) for IPV4 traffic, and does not require any special switch support. The receive load balancing is achieved by ARP negotiation. The bonding driver intercepts the ARP Replies sent by the local system on their way out and overwrites the source hardware address with the unique hardware address of one of the slaves in the bond such that different peers use different hardware addresses for the server.

ไข้หวัดใหญ่

ช่วงนี้ป่วยเป็นไข้หวัด เล่นเอาแย่เลย ดีน่ะที่ไม่เป็นไข้หวัดใหญ่ 2009 เมื่อวันพุธที่ 15 ผมเลยต้องขอบคุณพี่ก้อมมากๆ ที่พาไปส่งโรงพยาบาลตอนดึกๆ วันนั้น เจาะเลือด  เอาเสมหะไปตรวจกลัวว่าจะเป็นไข้หวัดใหญ่ 2009 แต่ผลออกมาเป็นแค่ไข้หวัดใหญ่  ฉีดยาไป 1 เข็ม ปวดมาก รุ่งเช้ายังนอนซมไม่มีแรง ไข้ยังมีอยู่ เลยไม่ไปทำงาน 2 วัน หยุดยาว ผมว่าขอดีของการเป็นหวัดคือไม่ต้องไปทำงาน  ช่วงนี้ต้องรักษาตัวมากๆ ร่างกายก็แย่ลงไปทุกวัน ไม่มีใครช่วยคุณ มากกว่าตัวคุณเอง