Avaya Troubleshooting Routers Průvodce řešením problémů stáhnout pdf (Strana 64)

Troubleshooting Routers

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In order for the memory card to accommodate a ﬁle, the ﬁle’s size must be less

than or equal to the “contiguous free space.” The “contiguous free space” is the

number of bytes of unused space.

If the ﬁle you want to store is less than the “available free space,” but more than

the “contiguous free space,” compact the existing ﬁles ﬁrst. When you ﬁnish

compacting ﬁles on a memory card, the “contiguous free space” matches the

“available free space.”

Thus, if the directory display shows that the memory card has 1000 bytes of

“available free space” and 1000 bytes of “contiguous free space,” all of its free

space is available for storing ﬁles. If you store a ﬁle that is 100 bytes, the number

of bytes of “available free space” and “contiguous free space” each becomes 900

bytes. If you delete the ﬁle and display the directory, the display shows 1000 bytes

of “available free space,” but only 900 bytes of “contiguous free space.” The

100-byte ﬁle remains on the memory card, even though you “deleted” it. Thus,

only 900 bytes remain for storing additional ﬁles until you compact the existing

ﬁles.

Memory or Buffer Problem

The router may have a memory or buffer problem if the log shows an “out of

resources” or “memalloc” (memory allocation) error.

The router separates memory into these two types:

• The router reserves global memory for all buffers.

These buffers store all incoming and outgoing trafﬁc.

• The router reserves local memory for the router software image, the routing

tables, and the forwarding tables.

The router software image includes both the operating system and executable

software modules.

Thus, the amount of local memory available determines the maximum number of

entries in a forwarding or routing table. If the router has a shortage of local

memory and an excess of global memory, you can use the conﬁguration

parameters in the Conﬁguration Manager’s Administration menu to increase

available local memory. Refer to Table 3-

3 to determine how much memory is

available for the type of processor in your router.

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Avaya Troubleshooting Routers Průvodce řešením problémů Strana 64