Bosch DICENTIS, Hardware Installation Manual

Page: 16 / 44

Hardware requirements
Switches
The following minimal requirements apply to switches:
–
1 Gbit or higher with hardware switching capabilities.
– Quality of Service through differentiated services with 4 or more output queues and strict
priority packet scheduling.
– (Optional) IGMPv3 or IGMPv2 snooping. To optimize bandwidth usage, IGMP snooping
can be used. This is useful in systems with >10 multicast streams, although not absolutely
required. Sufficient performance for handling a large number of IGMP query responses,
depending on the number of (directly or indirectly) connected devices to that switch.
Hardware support for IGMP is strongly recommended.
– (Optional) (Rapid) Spanning Tree support, in case redundant networks are used.
– (Optional) SNMPv3 support for switch supervision purposes.
Routers
The following minimal requirements apply to routers:
–
1 Gbit or higher Ethernet ports.
– Supports PIM‑DM or Bidirectional PIM.
– Performs IP routing in hardware (i.e. a ‘layer 3 switch’) to minimize the routing delay.
– Packet forwarding rate > 1,000,000 packets per second per port (e.g. 8 Mpps for an
8‑port router).
– Non-blocking backplane per switching port, i.e. 2 Gbit per port (e.g. 16 Gbps for an
8‑port router).
– MAC address table of at least 1000 addresses per directly connected subnet.
4.2
16 en | System installation design and planning DICENTIS
2016.09 | V1.4 | Hardware Installation Manual Bosch Security Systems B.V.